TopStudy

Đáp án và lời giải

Bài tập Toán lớp 2 Phép cộng (có nhớ) trong phạm vi 100 (có đáp án)

Về trang đề

Câu 1

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+73   8‾     81\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{73}\\{\,\,\,8}\end{array}} \\\,\,\,\,\,81\end{array}

+89   5‾    94\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{89}\\{\,\,\,5}\end{array}} \\\,\,\,\,94\end{array}

+29   2‾     31\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{29}\\{\,\,\,2}\end{array}} \\\,\,\,\,\,31\end{array}

+25   8‾    33\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{25}\\{\,\,\,8}\end{array}} \\\,\,\,\,33\end{array}

+36   7‾    43\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{36}\\{\,\,\,7}\end{array}} \\\,\,\,\,43\end{array}

+26   9‾    35\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{26}\\{\,\,\,9}\end{array}} \\\,\,\,\,35\end{array}

+28   4‾    32\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{28}\\{\,\,\,4}\end{array}} \\\,\,\,\,32\end{array}

+19   6‾    25\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{19}\\{\,\,\,6}\end{array}} \\\,\,\,\,25\end{array}

Câu 2

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+18   6‾    24\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{18}\\{\,\,\,6}\end{array}} \\\,\,\,\,24\end{array}

+64   9‾    73\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{64}\\{\,\,\,9}\end{array}} \\\,\,\,\,73\end{array}

+27   8‾    35\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{27}\\{\,\,\,8}\end{array}} \\\,\,\,\,35\end{array}

+68   5‾    73\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{68}\\{\,\,\,5}\end{array}} \\\,\,\,\,73\end{array}

+28   8‾    36\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{28}\\{\,\,\,8}\end{array}} \\\,\,\,\,36\end{array}

+17   9‾    26\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{17}\\{\,\,\,9}\end{array}} \\\,\,\,\,26\end{array}

+65   9‾    74\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{65}\\{\,\,\,9}\end{array}} \\\,\,\,\,74\end{array}

+17   5‾    22\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{17}\\{\,\,\,5}\end{array}} \\\,\,\,\,22\end{array}

Câu 3

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+36   6‾    42\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{36}\\{\,\,\,6}\end{array}} \\\,\,\,\,42\end{array}

+28   7‾    35\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{28}\\{\,\,\,7}\end{array}} \\\,\,\,\,35\end{array}

+26   8‾    34\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{26}\\{\,\,\,8}\end{array}} \\\,\,\,\,34\end{array}

+45   6‾    51\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{45}\\{\,\,\,6}\end{array}} \\\,\,\,\,51\end{array}

+79   7‾    86\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{79}\\{\,\,\,7}\end{array}} \\\,\,\,\,86\end{array}

+14   7‾    21\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{14}\\{\,\,\,7}\end{array}} \\\,\,\,\,21\end{array}

+57   4‾    61\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{57}\\{\,\,\,4}\end{array}} \\\,\,\,\,61\end{array}

+54   8‾    62\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{54}\\{\,\,\,8}\end{array}} \\\,\,\,\,62\end{array}

Câu 4

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+49   3‾    52\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{49}\\{\,\,\,3}\end{array}} \\\,\,\,\,52\end{array}

+79   4‾     83\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{79}\\{\,\,\,4}\end{array}} \\\,\,\,\,\,83\end{array}

+37   7‾    44\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{37}\\{\,\,\,7}\end{array}} \\\,\,\,\,44\end{array}

+88   9‾    97\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{88}\\{\,\,\,9}\end{array}} \\\,\,\,\,97\end{array}

+29   8‾    37\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{29}\\{\,\,\,8}\end{array}} \\\,\,\,\,37\end{array}

+33   9‾    42\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{33}\\{\,\,\,9}\end{array}} \\\,\,\,\,42\end{array}

+76   5‾     81\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{76}\\{\,\,\,5}\end{array}} \\\,\,\,\,\,81\end{array}

+67   6‾    73\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{67}\\{\,\,\,6}\end{array}} \\\,\,\,\,73\end{array}

Câu 5

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+42   9‾     51\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{42}\\{\,\,\,9}\end{array}} \\\,\,\,\,\,51\end{array}

+59   9‾    68\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{59}\\{\,\,\,9}\end{array}} \\\,\,\,\,68\end{array}

+86   5‾    91\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{86}\\{\,\,\,5}\end{array}} \\\,\,\,\,91\end{array}

+38   4‾    42\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{38}\\{\,\,\,4}\end{array}} \\\,\,\,\,42\end{array}

+39   4‾    43\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{39}\\{\,\,\,4}\end{array}} \\\,\,\,\,43\end{array}

+29   3‾    32\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{29}\\{\,\,\,3}\end{array}} \\\,\,\,\,32\end{array}

+89   2‾    91\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{89}\\{\,\,\,2}\end{array}} \\\,\,\,\,91\end{array}

+48   3‾    51\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{48}\\{\,\,\,3}\end{array}} \\\,\,\,\,51\end{array}

Câu 6

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+35   7‾    42\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{35}\\{\,\,\,7}\end{array}} \\\,\,\,\,42\end{array}

+55   7‾    62\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{55}\\{\,\,\,7}\end{array}} \\\,\,\,\,62\end{array}

+74   8‾    82\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{74}\\{\,\,\,8}\end{array}} \\\,\,\,\,82\end{array}

+17   5‾    22\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{17}\\{\,\,\,5}\end{array}} \\\,\,\,\,22\end{array}

+79   6‾    85\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{79}\\{\,\,\,6}\end{array}} \\\,\,\,\,85\end{array}

+16   6‾    22\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{16}\\{\,\,\,6}\end{array}} \\\,\,\,\,22\end{array}

+38   6‾    44\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{38}\\{\,\,\,6}\end{array}} \\\,\,\,\,44\end{array}

+27   8‾    35\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{27}\\{\,\,\,8}\end{array}} \\\,\,\,\,35\end{array}

Câu 7

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+   719‾    26\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,7}\\{19}\end{array}} \\\,\,\,\,26\end{array}

+   667‾    73\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,6}\\{67}\end{array}} \\\,\,\,\,73\end{array}

+   8 37‾    45\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,8\,}\\{37}\end{array}} \\\,\,\,\,45\end{array}

+   947‾    56\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,9}\\{47}\end{array}} \\\,\,\,\,56\end{array}

+  915‾   24\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,9}\\{15}\end{array}} \\\,\,\,24\end{array}

+   419‾    23\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,4}\\{19}\end{array}} \\\,\,\,\,23\end{array}

+   863‾    71\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,8}\\{63}\end{array}} \\\,\,\,\,71\end{array}

+   958‾    67\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,9}\\{58}\end{array}} \\\,\,\,\,67\end{array}

Câu 8

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+   427‾    31\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,4}\\{27}\end{array}} \\\,\,\,\,31\end{array}

+   979‾    88\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,9}\\{79}\end{array}} \\\,\,\,\,88\end{array}

+   736‾    43\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,7}\\{36}\end{array}} \\\,\,\,\,43\end{array}

+   629‾    35\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,6}\\{29}\end{array}} \\\,\,\,\,35\end{array}

+   855‾    63\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,8}\\{55}\end{array}} \\\,\,\,\,63\end{array}

+   368‾    71\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,3}\\{68}\end{array}} \\\,\,\,\,71\end{array}

+   878‾    86\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,8}\\{78}\end{array}} \\\,\,\,\,86\end{array}

+   889‾    97\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,8}\\{89}\end{array}} \\\,\,\,\,97\end{array}

Câu 9

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+   519‾    24\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,5}\\{19}\end{array}} \\\,\,\,\,24\end{array}

+   828‾    36\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,8}\\{28}\end{array}} \\\,\,\,\,36\end{array}

+   528‾    33\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,5}\\{28}\end{array}} \\\,\,\,\,33\end{array}

+   777‾    84\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,7}\\{77}\end{array}} \\\,\,\,\,84\end{array}

+   259‾    61\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,2}\\{59}\end{array}} \\\,\,\,\,61\end{array}

+   446‾    50\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,4}\\{46}\end{array}} \\\,\,\,\,50\end{array}

+   289‾    91\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,2}\\{89}\end{array}} \\\,\,\,\,91\end{array}

+   159‾    60\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,1}\\{59}\end{array}} \\\,\,\,\,60\end{array}

Câu 10

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+   648‾    54\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,6}\\{48}\end{array}} \\\,\,\,\,54\end{array}

+   754‾    61\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,7}\\{54}\end{array}} \\\,\,\,\,61\end{array}

+   218‾    20\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,2}\\{18}\end{array}} \\\,\,\,\,20\end{array}

+  932‾    41\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,9}\\{32}\end{array}} \\\,\,\,\,41\end{array}

+   537‾    42\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,5}\\{37}\end{array}} \\\,\,\,\,42\end{array}

+  349‾    52\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,3}\\{49}\end{array}} \\\,\,\,\,52\end{array}

+   446‾    50\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,4}\\{46}\end{array}} \\\,\,\,\,50\end{array}

+   743‾    50\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,7}\\{43}\end{array}} \\\,\,\,\,50\end{array}

Câu 11

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+   327‾    30\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,3}\\{27}\end{array}} \\\,\,\,\,30\end{array}

+   624‾    30\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,6}\\{24}\end{array}} \\\,\,\,\,30\end{array}

+   852‾    60\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,8}\\{52}\end{array}} \\\,\,\,\,60\end{array}

+   535‾    40\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,5}\\{35}\end{array}} \\\,\,\,\,40\end{array}

+   757‾    64\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,7}\\{57}\end{array}} \\\,\,\,\,64\end{array}

+   575‾    80\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,5}\\{75}\end{array}} \\\,\,\,\,80\end{array}

+   971‾    80\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,9}\\{71}\end{array}} \\\,\,\,\,80\end{array}

+   866‾    74\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,8}\\{66}\end{array}} \\\,\,\,\,74\end{array}

Câu 12

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+   827‾    35\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,8}\\{27}\end{array}} \\\,\,\,\,35\end{array}

+   959‾    68\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,9}\\{59}\end{array}} \\\,\,\,\,68\end{array}

+   754‾    61\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,7}\\{54}\end{array}} \\\,\,\,\,61\end{array}

+   942‾    51\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,9}\\{42}\end{array}} \\\,\,\,\,51\end{array}

+   839‾    47\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,8}\\{39}\end{array}} \\\,\,\,\,47\end{array}

+   787‾    94\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,7}\\{87}\end{array}} \\\,\,\,\,94\end{array}

+   833‾    41\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,8}\\{33}\end{array}} \\\,\,\,\,41\end{array}

+    328‾     31\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{\,\,\,\,3}\\{28}\end{array}} \\\,\,\,\,\,31\end{array}

Câu 13

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+3537‾    72\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{35}\\{37}\end{array}} \\\,\,\,\,72\end{array}

+5914‾    73\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{59}\\{14}\end{array}} \\\,\,\,\,73\end{array}

+2618‾    44\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{26}\\{18}\end{array}} \\\,\,\,\,44\end{array}

+4917‾    66\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{49}\\{17}\end{array}} \\\,\,\,\,66\end{array}

+1913‾   32\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{19}\\{13}\end{array}} \\\,\,\,32\end{array}

+3827‾    65\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{38}\\{27}\end{array}} \\\,\,\,\,65\end{array}

+4942‾    91\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{49}\\{42}\end{array}} \\\,\,\,\,91\end{array}

+4428‾    72\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{44}\\{28}\end{array}} \\\,\,\,\,72\end{array}

Câu 14

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+2956‾    85\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{29}\\{56}\end{array}} \\\,\,\,\,85\end{array}

+6816‾    84\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{68}\\{16}\end{array}} \\\,\,\,\,84\end{array}

+7717‾    94\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{77}\\{17}\end{array}} \\\,\,\,\,94\end{array}

+2548‾    73\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{25}\\{48}\end{array}} \\\,\,\,\,73\end{array}

+3822‾    60\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{38}\\{22}\end{array}} \\\,\,\,\,60\end{array}

+1968‾    87\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{19}\\{68}\end{array}} \\\,\,\,\,87\end{array}

+1825‾    43\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{18}\\{25}\end{array}} \\\,\,\,\,43\end{array}

+3718‾    55\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{37}\\{18}\end{array}} \\\,\,\,\,55\end{array}

Câu 15

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+2725‾    52\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{27}\\{25}\end{array}} \\\,\,\,\,52\end{array}

+3726‾    63\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{37}\\{26}\end{array}} \\\,\,\,\,63\end{array}

+4828‾    76\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{48}\\{28}\end{array}} \\\,\,\,\,76\end{array}

+3834‾    72\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{38}\\{34}\end{array}} \\\,\,\,\,72\end{array}

+2724‾    51\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{27}\\{24}\end{array}} \\\,\,\,\,51\end{array}

+5713‾    70\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{57}\\{13}\end{array}} \\\,\,\,\,70\end{array}

+2469‾    93\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{24}\\{69}\end{array}} \\\,\,\,\,93\end{array}

+2626‾    52\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{26}\\{26}\end{array}} \\\,\,\,\,52\end{array}

Câu 16

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+5317‾    70\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{53}\\{17}\end{array}} \\\,\,\,\,70\end{array}

+2338‾    61\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{23}\\{38}\end{array}} \\\,\,\,\,61\end{array}

+6615‾    81\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{66}\\{15}\end{array}} \\\,\,\,\,81\end{array}

+4719‾    66\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{47}\\{19}\end{array}} \\\,\,\,\,66\end{array}

+2556‾    81\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{25}\\{56}\end{array}} \\\,\,\,\,81\end{array}

+5417‾    71\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{54}\\{17}\end{array}} \\\,\,\,\,71\end{array}

+5529‾    84\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{55}\\{29}\end{array}} \\\,\,\,\,84\end{array}

+3945‾    84\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{39}\\{45}\end{array}} \\\,\,\,\,84\end{array}

Câu 17

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+5319‾   72\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{53}\\{19}\end{array}} \\\,\,\,72\end{array}

+1219‾    31\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{12}\\{19}\end{array}} \\\,\,\,\,31\end{array}

+2929‾    58\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{29}\\{29}\end{array}} \\\,\,\,\,58\end{array}

+4719‾    66\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{47}\\{19}\end{array}} \\\,\,\,\,66\end{array}

+1677‾    93\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{16}\\{77}\end{array}} \\\,\,\,\,93\end{array}

+2833‾    61\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{28}\\{33}\end{array}} \\\,\,\,\,61\end{array}

+3753‾    90\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{37}\\{53}\end{array}} \\\,\,\,\,90\end{array}

+1539‾    54\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{15}\\{39}\end{array}} \\\,\,\,\,54\end{array}

Câu 18

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+1478‾    92\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{14}\\{78}\end{array}} \\\,\,\,\,92\end{array}

+1872‾    90\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{18}\\{72}\end{array}} \\\,\,\,\,90\end{array}

+7619‾    95\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{76}\\{19}\end{array}} \\\,\,\,\,95\end{array}

+2869‾    97\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{28}\\{69}\end{array}} \\\,\,\,\,97\end{array}

+2838‾    66\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{28}\\{38}\end{array}} \\\,\,\,\,66\end{array}

+4119‾    60\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{41}\\{19}\end{array}} \\\,\,\,\,60\end{array}

+2248‾    70\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{22}\\{48}\end{array}} \\\,\,\,\,70\end{array}

+1446‾    60\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{14}\\{46}\end{array}} \\\,\,\,\,60\end{array}

Câu 19

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+1318‾    31\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{13}\\{18}\end{array}} \\\,\,\,\,31\end{array}

+3546‾    81\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{35}\\{46}\end{array}} \\\,\,\,\,81\end{array}

+3636‾    72\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{36}\\{36}\end{array}} \\\,\,\,\,72\end{array}

+1716‾    33\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{17}\\{16}\end{array}} \\\,\,\,\,33\end{array}

+2834‾    62\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{28}\\{34}\end{array}} \\\,\,\,\,62\end{array}

+1857‾    75\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{18}\\{57}\end{array}} \\\,\,\,\,75\end{array}

+1921‾    40\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{19}\\{21}\end{array}} \\\,\,\,\,40\end{array}

+6912‾    81\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{69}\\{12}\end{array}} \\\,\,\,\,81\end{array}

Câu 20

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+6418‾    82\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{64}\\{18}\end{array}} \\\,\,\,\,82\end{array}

+2933‾    62\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{29}\\{33}\end{array}} \\\,\,\,\,62\end{array}

+2617‾    43\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{26}\\{17}\end{array}} \\\,\,\,\,43\end{array}

+1818‾    36\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{18}\\{18}\end{array}} \\\,\,\,\,36\end{array}

+1416‾    30\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{14}\\{16}\end{array}} \\\,\,\,\,30\end{array}

+3457‾    91\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{34}\\{57}\end{array}} \\\,\,\,\,91\end{array}

+2925‾    54\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{29}\\{25}\end{array}} \\\,\,\,\,54\end{array}

+4248‾    90\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{42}\\{48}\end{array}} \\\,\,\,\,90\end{array}

Câu 21

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+3638‾    74\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{36}\\{38}\end{array}} \\\,\,\,\,74\end{array}

+2727‾    54\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{27}\\{27}\end{array}} \\\,\,\,\,54\end{array}

+3924‾    63\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{39}\\{24}\end{array}} \\\,\,\,\,63\end{array}

+1368‾    81\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{13}\\{68}\end{array}} \\\,\,\,\,81\end{array}

+2635‾    61\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{26}\\{35}\end{array}} \\\,\,\,\,61\end{array}

+6815‾    83\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{68}\\{15}\end{array}} \\\,\,\,\,83\end{array}

+4719‾    66\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{47}\\{19}\end{array}} \\\,\,\,\,66\end{array}

+1159‾    70\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{11}\\{59}\end{array}} \\\,\,\,\,70\end{array}

Câu 22

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+4836‾    84\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{48}\\{36}\end{array}} \\\,\,\,\,84\end{array}

+2733‾    60\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{27}\\{33}\end{array}} \\\,\,\,\,60\end{array}

+3927‾    66\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{39}\\{27}\end{array}} \\\,\,\,\,66\end{array}

+2439‾    63\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{24}\\{39}\end{array}} \\\,\,\,\,63\end{array}

+7919‾    98\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{79}\\{19}\end{array}} \\\,\,\,\,98\end{array}

+2339‾    62\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{23}\\{39}\end{array}} \\\,\,\,\,62\end{array}

+5418‾    72\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{54}\\{18}\end{array}} \\\,\,\,\,72\end{array}

+7812‾    90\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{78}\\{12}\end{array}} \\\,\,\,\,90\end{array}

Câu 23

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+1  81  9‾    37\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{1\,\,8}\\{1\,\,9}\end{array}} \\\,\,\,\,37\end{array}

+6628‾    94\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{66}\\{28}\end{array}} \\\,\,\,\,94\end{array}

+1249‾    61\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{12}\\{49}\end{array}} \\\,\,\,\,61\end{array}

+1823‾    41\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{18}\\{23}\end{array}} \\\,\,\,\,41\end{array}

+6928‾    97\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{69}\\{28}\end{array}} \\\,\,\,\,97\end{array}

+1734‾    51\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{17}\\{34}\end{array}} \\\,\,\,\,51\end{array}

+4715‾    62\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{47}\\{15}\end{array}} \\\,\,\,\,62\end{array}

+2619‾    45\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{26}\\{19}\end{array}} \\\,\,\,\,45\end{array}

Câu 24

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+2614‾    40\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{26}\\{14}\end{array}} \\\,\,\,\,40\end{array}

+1515‾    30\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{15}\\{15}\end{array}} \\\,\,\,\,30\end{array}

+1377‾    90\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{13}\\{77}\end{array}} \\\,\,\,\,90\end{array}

+5916‾    75\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{59}\\{16}\end{array}} \\\,\,\,\,75\end{array}

+3911‾    50\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{39}\\{11}\end{array}} \\\,\,\,\,50\end{array}

+4347‾    90\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{43}\\{47}\end{array}} \\\,\,\,\,90\end{array}

+2716‾    43\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{27}\\{16}\end{array}} \\\,\,\,\,43\end{array}

+1579‾    94\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{15}\\{79}\end{array}} \\\,\,\,\,94\end{array}

Câu 25

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+2517‾    42\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{25}\\{17}\end{array}} \\\,\,\,\,42\end{array}

+1526‾    41\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{15}\\{26}\end{array}} \\\,\,\,\,41\end{array}

+4816‾    64\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{48}\\{16}\end{array}} \\\,\,\,\,64\end{array}

+3648‾    84\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{36}\\{48}\end{array}} \\\,\,\,\,84\end{array}

+2834‾    62\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{28}\\{34}\end{array}} \\\,\,\,\,62\end{array}

+2417‾    41\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{24}\\{17}\end{array}} \\\,\,\,\,41\end{array}

+2725‾    52\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{27}\\{25}\end{array}} \\\,\,\,\,52\end{array}

+6921‾    90\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{69}\\{21}\end{array}} \\\,\,\,\,90\end{array}

Câu 26

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+7718‾    95\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{77}\\{18}\end{array}} \\\,\,\,\,95\end{array}

+3843‾    81\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{38}\\{43}\end{array}} \\\,\,\,\,81\end{array}

+2929‾    58\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{29}\\{29}\end{array}} \\\,\,\,\,58\end{array}

+1769‾    86\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{17}\\{69}\end{array}} \\\,\,\,\,86\end{array}

+2328‾    51\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{23}\\{28}\end{array}} \\\,\,\,\,51\end{array}

+4943‾    92\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{49}\\{43}\end{array}} \\\,\,\,\,92\end{array}

+2833‾    61\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{28}\\{33}\end{array}} \\\,\,\,\,61\end{array}

+1916‾    35\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{19}\\{16}\end{array}} \\\,\,\,\,35\end{array}

Câu 27

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+4747‾    94\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{47}\\{47}\end{array}} \\\,\,\,\,94\end{array}

+4527‾    72\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{45}\\{27}\end{array}} \\\,\,\,\,72\end{array}

+5812‾    70\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{58}\\{12}\end{array}} \\\,\,\,\,70\end{array}

+2755‾    82\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{27}\\{55}\end{array}} \\\,\,\,\,82\end{array}

+4846‾    94\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{48}\\{46}\end{array}} \\\,\,\,\,94\end{array}

+2835‾    63\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{28}\\{35}\end{array}} \\\,\,\,\,63\end{array}

+6518‾    83\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{65}\\{18}\end{array}} \\\,\,\,\,83\end{array}

+3616‾    52\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{36}\\{16}\end{array}} \\\,\,\,\,52\end{array}

Câu 28

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+1964‾    83\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{19}\\{64}\end{array}} \\\,\,\,\,83\end{array}

+3848‾    86\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{38}\\{48}\end{array}} \\\,\,\,\,86\end{array}

+3724‾    61\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{37}\\{24}\end{array}} \\\,\,\,\,61\end{array}

+1865‾    83\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{18}\\{65}\end{array}} \\\,\,\,\,83\end{array}

+1625‾    41\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{16}\\{25}\end{array}} \\\,\,\,\,41\end{array}

+2922‾    51\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{29}\\{22}\end{array}} \\\,\,\,\,51\end{array}

+2239‾    61\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{22}\\{39}\end{array}} \\\,\,\,\,61\end{array}

+1927‾    46\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{19}\\{27}\end{array}} \\\,\,\,\,46\end{array}

Câu 29

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+3418‾    52\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{34}\\{18}\end{array}} \\\,\,\,\,52\end{array}

+7913‾    92\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{79}\\{13}\end{array}} \\\,\,\,\,92\end{array}

+4743‾    90\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{47}\\{43}\end{array}} \\\,\,\,\,90\end{array}

+3515‾    50\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{35}\\{15}\end{array}} \\\,\,\,\,50\end{array}

+6624‾    90\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{66}\\{24}\end{array}} \\\,\,\,\,90\end{array}

+2546‾    71\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{25}\\{46}\end{array}} \\\,\,\,\,71\end{array}

+6817‾    85\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{68}\\{17}\end{array}} \\\,\,\,\,85\end{array}

+4842‾    90\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{48}\\{42}\end{array}} \\\,\,\,\,90\end{array}

Câu 30

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+2764‾    91\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{27}\\{64}\end{array}} \\\,\,\,\,91\end{array}

+3634‾    70\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{36}\\{34}\end{array}} \\\,\,\,\,70\end{array}

+2456‾    80\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{24}\\{56}\end{array}} \\\,\,\,\,80\end{array}

+2723‾    50\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{27}\\{23}\end{array}} \\\,\,\,\,50\end{array}

+3539‾    74\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{35}\\{39}\end{array}} \\\,\,\,\,74\end{array}

+1639‾    55\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{16}\\{39}\end{array}} \\\,\,\,\,55\end{array}

+5419‾    73\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{54}\\{19}\end{array}} \\\,\,\,\,73\end{array}

+2637‾    63\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{26}\\{37}\end{array}} \\\,\,\,\,63\end{array}

Câu 31

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+3853‾    91\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{38}\\{53}\end{array}} \\\,\,\,\,91\end{array}

+1715‾    32\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{17}\\{15}\end{array}} \\\,\,\,\,32\end{array}

+3538‾    73\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{35}\\{38}\end{array}} \\\,\,\,\,73\end{array}

+2747‾    74\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{27}\\{47}\end{array}} \\\,\,\,\,74\end{array}

+3636‾    72\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{36}\\{36}\end{array}} \\\,\,\,\,72\end{array}

+2349‾    72\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{23}\\{49}\end{array}} \\\,\,\,\,72\end{array}

+2567‾    92\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{25}\\{67}\end{array}} \\\,\,\,\,92\end{array}

+5828‾    86\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{58}\\{28}\end{array}} \\\,\,\,\,86\end{array}

Câu 32

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+7119‾    90\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{71}\\{19}\end{array}} \\\,\,\,\,90\end{array}

+2839‾    67\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{28}\\{39}\end{array}} \\\,\,\,\,67\end{array}

+3736‾    73\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{37}\\{36}\end{array}} \\\,\,\,\,73\end{array}

+1948‾    67\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{19}\\{48}\end{array}} \\\,\,\,\,67\end{array}

+1925‾    44\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{19}\\{25}\end{array}} \\\,\,\,\,44\end{array}

+2339‾    62\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{23}\\{39}\end{array}} \\\,\,\,\,62\end{array}

+2559‾    84\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{25}\\{59}\end{array}} \\\,\,\,\,84\end{array}

+6417‾    81\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{64}\\{17}\end{array}} \\\,\,\,\,81\end{array}

Câu 33

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+2668‾    94\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{26}\\{68}\end{array}} \\\,\,\,\,94\end{array}

+1971‾    90\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{19}\\{71}\end{array}} \\\,\,\,\,90\end{array}

+3119‾    50\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{31}\\{19}\end{array}} \\\,\,\,\,50\end{array}

+1955‾    74\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{19}\\{55}\end{array}} \\\,\,\,\,74\end{array}

+1956‾    75\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{19}\\{56}\end{array}} \\\,\,\,\,75\end{array}

+7913‾    92\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{79}\\{13}\end{array}} \\\,\,\,\,92\end{array}

+2617‾    43\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{26}\\{17}\end{array}} \\\,\,\,\,43\end{array}

+1229‾    41\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{12}\\{29}\end{array}} \\\,\,\,\,41\end{array}

Câu 34

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+2327‾    50\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{23}\\{27}\end{array}} \\\,\,\,\,50\end{array}

+7819‾    97\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{78}\\{19}\end{array}} \\\,\,\,\,97\end{array}

+3739‾    76\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{37}\\{39}\end{array}} \\\,\,\,\,76\end{array}

+6528‾    93\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{65}\\{28}\end{array}} \\\,\,\,\,93\end{array}

+2924‾    53\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{29}\\{24}\end{array}} \\\,\,\,\,53\end{array}

+3716‾    53\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{37}\\{16}\end{array}} \\\,\,\,\,53\end{array}

+2754‾    81\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{27}\\{54}\end{array}} \\\,\,\,\,81\end{array}

+4948‾    97\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{49}\\{48}\end{array}} \\\,\,\,\,97\end{array}

Câu 35

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+2639‾    65\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{26}\\{39}\end{array}} \\\,\,\,\,65\end{array}

+1519‾    34\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{15}\\{19}\end{array}} \\\,\,\,\,34\end{array}

+3852‾    90\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{38}\\{52}\end{array}} \\\,\,\,\,90\end{array}

+7912‾    91\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{79}\\{12}\end{array}} \\\,\,\,\,91\end{array}

+2428‾    52\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{24}\\{28}\end{array}} \\\,\,\,\,52\end{array}

+3824‾    62\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{38}\\{24}\end{array}} \\\,\,\,\,62\end{array}

+2738‾    65\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{27}\\{38}\end{array}} \\\,\,\,\,65\end{array}

+1456‾    70\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{14}\\{56}\end{array}} \\\,\,\,\,70\end{array}

Câu 36

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

+4927‾    76\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{49}\\{27}\end{array}} \\\,\,\,\,76\end{array}

+6615‾    81\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{66}\\{15}\end{array}} \\\,\,\,\,81\end{array}

+3439‾    73\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{34}\\{39}\end{array}} \\\,\,\,\,73\end{array}

+1979‾    98\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{19}\\{79}\end{array}} \\\,\,\,\,98\end{array}

+5817‾    75\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{58}\\{17}\end{array}} \\\,\,\,\,75\end{array}

+2327‾    50\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{23}\\{27}\end{array}} \\\,\,\,\,50\end{array}

+7318‾    91\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{73}\\{18}\end{array}} \\\,\,\,\,91\end{array}

+1575‾    90\begin{array}{l}\underline { + \begin{array}{cccccccccccccccccccc}{15}\\{75}\end{array}} \\\,\,\,\,90\end{array}

Câu 37

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

69 + 25 = 9428 + 33 = 6165 + 29 = 9438 + 29 = 67
17 + 65 = 8225 + 17 = 4259 + 23 = 8219 + 13 = 32
56 + 29 = 8527 + 27 = 5448 + 23 = 7139 + 17 = 56
48 + 12 = 6045 + 27 = 7242 + 18 = 6029 + 46 = 75
46 + 28 = 7467 + 13 = 8018 + 35 = 5375 + 9 = 84

Câu 38

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

25 + 17 = 4259 + 24 = 8318 + 14 = 3219 + 56 = 75
13 +19 = 3249 + 17 = 6659 + 2 = 6141 + 19 = 60
55 + 16 = 7144 + 18 = 6273 + 19 = 9215 + 38 = 53
51 + 39 = 9069 + 19 = 8815 + 66 = 8119 + 41 = 60
59 + 8 = 6726 + 37 = 6328 + 35 = 6327 + 45 = 72

Câu 39

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

18 + 74 = 9227 + 26 = 5347 + 46 = 9353 + 38 = 91
89 + 5 = 9466 + 8 = 7413 + 47 = 6023 + 38 = 61
27 + 45 = 7239 + 39 = 7838 + 34 = 7267 + 18 = 85
39 + 36 = 7547 + 18 = 6535 + 19 = 5425 + 46 = 71
19 + 23 = 4218 + 27 = 4526 + 36 = 6267 + 14 = 81

Câu 40

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

39 + 24 = 6334 + 48 = 8219 + 27 = 4637 + 38 = 75
42 + 28 = 7069 + 14 = 8337 + 26 = 6348 + 12 = 60
38 + 42 = 8015 + 15 = 3064 + 18 = 8226 + 38 = 64
25 + 18 = 4328 + 15 = 4319 + 14 = 3368 + 4 = 72
15 + 45 = 6035 + 55 = 9011 + 79 = 9054 + 19 = 73

Câu 41

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

68 + 29 = 9786 + 9 = 9538 + 55 = 9378 + 13 = 91
28 + 27 = 5529 + 34 = 6339 + 5 = 4439 + 28 = 67
37 + 38 = 7537 + 24 = 6116 + 16 = 3227 + 6 = 33
58 + 27 = 8565 + 28 = 9318 + 26 = 4432 + 9 = 41
34 + 29 = 6325 + 56 = 8138 + 35 = 7345 + 39 = 84

Câu 42

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

18 + 18 = 3627 + 25 = 5245 + 46 = 9117 + 39 = 56
39 + 41 = 8039 + 53 = 9235 + 57 = 9246 + 5 = 51
64 + 27 = 9127 + 23 = 5019 + 67 = 8644 + 47 = 91
18 + 67 = 8575 + 17 = 9266 + 16 = 8228 + 26 = 54
19 + 35 = 5414 + 77 = 9148 + 8 = 5657 + 29 = 86

Câu 43

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

35 + 28 = 6323 + 48 = 7123 + 8 = 3124 + 38 = 62
29 + 53 = 8224 + 17 = 4163 + 29 = 9237 + 44 = 81
15 + 47 = 6216 + 58 = 7467 + 7 = 7428 + 24 = 52
28 + 45 = 7338 + 28 = 6635 + 48 = 8326 + 17 = 43
27 + 18 = 4538 + 33 = 7145 + 48 = 9376 + 18 = 94

Câu 44

Hướng dẫn chấm do TopStudy biên soạn, mang tính gợi ý

28 + 28 = 5657 + 17 = 7456 + 8 = 6427 + 7 = 34
37 + 24 = 6155 + 27 = 8212 + 87 = 9918 + 18 = 36
79 + 2 = 8114 + 7 = 2134 + 20 = 5490 + 5 = 95
36 + 25 = 6172 + 8 = 8081 + 11= 9212 + 19 = 31
37 + 48 = 855 + 29 = 3469 + 27 = 9672 + 26 = 98