TopStudy

Toán · Lớp 5

Bài tập Toán lớp 5 Phép trừ số thập phân có đáp án

10 câu · 15 phút · Ngân hàng đề TopStudy. Đáp án và lời giải do TopStudy biên soạn, mở ngay dưới từng câu.

Làm bài

Nội dung đề

Phần I. Tự luận

Câu 1

1 điểm
−45,612,3‾\underline { - \begin{array}{cccccccccccccccccccc}{45{,}6}\\{12{,}3}\end{array}} ...−123,78    4,56‾\underline { - \begin{array}{cccccccccccccccccccc}{123{,}78}\\{\,\,\,\,4{,}56}\end{array}} ...−7,89   2,134‾\underline { - \begin{array}{cccccccccccccccccccc}{7{,}89}\\{\,\,\,2{,}134}\end{array}} ...−234,5   89,1‾\underline { - \begin{array}{cccccccccccccccccccc}{234{,}5}\\{\,\,\,89{,}1}\end{array}} ...−456,7345,2‾\underline { - \begin{array}{cccccccccccccccccccc}{456{,}7}\\{345{,}2}\end{array}} ...
−89,12  5,67‾\underline { - \begin{array}{cccccccccccccccccccc}{89{,}12}\\{\,\,5{,}67}\end{array}} ...−345,9        1,23‾\underline { - \begin{array}{cccccccccccccccccccc}{345{,}9}\\{\,\,\,\,\,\,\,\,1{,}23}\end{array}} ...−23,456 6,78‾\underline { - \begin{array}{cccccccccccccccccccc}{23{,}456}\\{\,6{,}78}\end{array}} ...−167,4  78,9‾\underline { - \begin{array}{cccccccccccccccccccc}{167{,}4}\\{\,\,78{,}9}\end{array}} ...−12,34    3,456‾\underline { - \begin{array}{cccccccccccccccccccc}{12{,}34}\\{\,\,\,\,3{,}456}\end{array}} ...
−234,5  67,8‾\underline { - \begin{array}{cccccccccccccccccccc}{234{,}5}\\{\,\,67{,}8}\end{array}} ...−56,7       4,123‾\underline { - \begin{array}{cccccccccccccccccccc}{56{,}7}\\{\,\,\,\,\,\,\,4{,}123}\end{array}} ...−189,2123,4‾\underline { - \begin{array}{cccccccccccccccccccc}{189{,}2}\\{123{,}4}\end{array}} ...−345,1            2,345‾\underline { - \begin{array}{cccccccccccccccccccc}{345{,}1}\\{\,\,\,\,\,\,\,\,\,\,\,\,2{,}345}\end{array}} ...−78,9     5,67‾\underline { - \begin{array}{cccccccccccccccccccc}{78{,}9}\\{\,\,\,\,\,5{,}67}\end{array}} ...
−12,3451,23‾\underline { - \begin{array}{cccccccccccccccccccc}{12{,}345}\\{1{,}23}\end{array}} ...−167,8      56,78‾\underline { - \begin{array}{cccccccccccccccccccc}{167{,}8}\\{\,\,\,\,\,\,56{,}78}\end{array}} ...−456,2234,5‾\underline { - \begin{array}{cccccccccccccccccccc}{456{,}2}\\{234{,}5}\end{array}} ...−89,34    6,789‾\underline { - \begin{array}{cccccccccccccccccccc}{89{,}34}\\{\,\,\,\,6{,}789}\end{array}} ...−123,6  45,1‾\underline { - \begin{array}{cccccccccccccccccccc}{123{,}6}\\{\,\,45{,}1}\end{array}} ...
−345,9  78,9‾\underline { - \begin{array}{cccccccccccccccccccc}{345{,}9}\\{\,\,78{,}9}\end{array}} ...−23,67 2,56‾\underline { - \begin{array}{cccccccccccccccccccc}{23{,}67}\\{\,2{,}56}\end{array}} ...−5,6781,234‾\underline { - \begin{array}{cccccccccccccccccccc}{5{,}678}\\{1{,}234}\end{array}} ...−134,5  67,8‾\underline { - \begin{array}{cccccccccccccccccccc}{134{,}5}\\{\,\,67{,}8}\end{array}} ...−456,1189,2‾\underline { - \begin{array}{cccccccccccccccccccc}{456{,}1}\\{189{,}2}\end{array}} ...
−    67,8912,3‾\underline { - \begin{array}{cccccccccccccccccccc}{\,\,\,\,67{,}89}\\{12{,}3}\end{array}} ...−189,4123,5‾\underline { - \begin{array}{cccccccccccccccccccc}{189{,}4}\\{123{,}5}\end{array}} ...−345,6  56,7‾\underline { - \begin{array}{cccccccccccccccccccc}{345{,}6}\\{\,\,56{,}7}\end{array}} ...−   7,1232,45‾\underline { - \begin{array}{cccccccccccccccccccc}{\,\,\,7{,}123}\\{2{,}45}\end{array}} ...−23,456  5,678‾\underline { - \begin{array}{cccccccccccccccccccc}{23{,}456}\\{\,\,5{,}678}\end{array}} ...
−123,7 45,6‾\underline { - \begin{array}{cccccccccccccccccccc}{123{,}7}\\{\,45{,}6}\end{array}} ...−456,2     89,12‾\underline { - \begin{array}{cccccccccccccccccccc}{456{,}2}\\{\,\,\,\,\,89{,}12}\end{array}} ...−12,34     1,789‾\underline { - \begin{array}{cccccccccccccccccccc}{12{,}34}\\{\,\,\,\,\,1{,}789}\end{array}} ...−234,9167,4‾\underline { - \begin{array}{cccccccccccccccccccc}{234{,}9}\\{167{,}4}\end{array}} ...−56,78  3,45‾\underline { - \begin{array}{cccccccccccccccccccc}{56{,}78}\\{\,\,3{,}45}\end{array}} ...
−189,5  78,9‾\underline { - \begin{array}{cccccccccccccccccccc}{189{,}5}\\{\,\,78{,}9}\end{array}} ...−5,67  2,134‾\underline { - \begin{array}{cccccccccccccccccccc}{5{,}67}\\{\,\,2{,}134}\end{array}} ...−345,1123,6‾\underline { - \begin{array}{cccccccccccccccccccc}{345{,}1}\\{123{,}6}\end{array}} ...−67,8912,34‾\underline { - \begin{array}{cccccccccccccccccccc}{67{,}89}\\{12{,}34}\end{array}} ...−456,7234,5‾\underline { - \begin{array}{cccccccccccccccccccc}{456{,}7}\\{234{,}5}\end{array}} ...
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−45,612,3‾    33,3\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{45{,}6}\\{12{,}3}\end{array}} \\\,\,\,\,33{,}3\end{array}−123,78    4,56‾   119,22\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{123{,}78}\\{\,\,\,\,4{,}56}\end{array}} \\\,\,\,119{,}22\end{array}−7,89   2,134‾       5,756\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{7{,}89}\\{\,\,\,2{,}134}\end{array}} \\\,\,\,\,\,\,\,5{,}756\end{array}−234,5   89,1‾    145,4\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{234{,}5}\\{\,\,\,89{,}1}\end{array}} \\\,\,\,\,145{,}4\end{array}−456,7345,2‾     111,5\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{456{,}7}\\{345{,}2}\end{array}} \\\,\,\,\,\,111{,}5\end{array}
−89,12  5,67‾   83,45\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{89{,}12}\\{\,\,5{,}67}\end{array}} \\\,\,\,83{,}45\end{array}−345,9        1,23‾     344,67\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{345{,}9}\\{\,\,\,\,\,\,\,\,1{,}23}\end{array}} \\\,\,\,\,\,344{,}67\end{array}−23,456 6,78‾    16,676\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{23{,}456}\\{\,6{,}78}\end{array}} \\\,\,\,\,16{,}676\end{array}−167,4  78,9‾      88,5\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{167{,}4}\\{\,\,78{,}9}\end{array}} \\\,\,\,\,\,\,88{,}5\end{array}−12,34    3,456‾        8,884\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{12{,}34}\\{\,\,\,\,3{,}456}\end{array}} \\\,\,\,\,\,\,\,\,8{,}884\end{array}
−234,5  67,8‾    166,7\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{234{,}5}\\{\,\,67{,}8}\end{array}} \\\,\,\,\,166{,}7\end{array}−56,7       4,123‾        52,577\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{56{,}7}\\{\,\,\,\,\,\,\,4{,}123}\end{array}} \\\,\,\,\,\,\,\,\,52{,}577\end{array}−189,2123,4‾      65,8\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{189{,}2}\\{123{,}4}\end{array}} \\\,\,\,\,\,\,65{,}8\end{array}−345,1            2,345‾          342,755\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{345{,}1}\\{\,\,\,\,\,\,\,\,\,\,\,\,2{,}345}\end{array}} \\\,\,\,\,\,\,\,\,\,\,342{,}755\end{array}−78,9     5,67‾      73,23\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{78{,}9}\\{\,\,\,\,\,5{,}67}\end{array}} \\\,\,\,\,\,\,73{,}23\end{array}
−12,3451,23‾    11,115\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{12{,}345}\\{1{,}23}\end{array}} \\\,\,\,\,11{,}115\end{array}−167,8      56,78‾        111,02\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{167{,}8}\\{\,\,\,\,\,\,56{,}78}\end{array}} \\\,\,\,\,\,\,\,\,111{,}02\end{array}−456,2234,5‾    221,7\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{456{,}2}\\{234{,}5}\end{array}} \\\,\,\,\,221{,}7\end{array}−89,34    6,789‾     82,551\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{89{,}34}\\{\,\,\,\,6{,}789}\end{array}} \\\,\,\,\,\,82{,}551\end{array}−123,6  45,1‾      78,5\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{123{,}6}\\{\,\,45{,}1}\end{array}} \\\,\,\,\,\,\,78{,}5\end{array}
−345,9  78,9‾   267\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{345{,}9}\\{\,\,78{,}9}\end{array}} \\\,\,\,267\end{array}−23,67 2,56‾    21,11\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{23{,}67}\\{\,2{,}56}\end{array}} \\\,\,\,\,21{,}11\end{array}−5,6781,234‾   4,444\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{5{,}678}\\{1{,}234}\end{array}} \\\,\,\,4{,}444\end{array}−134,5  67,8‾      66,7\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{134{,}5}\\{\,\,67{,}8}\end{array}} \\\,\,\,\,\,\,66{,}7\end{array}−456,1189,2‾   266,9\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{456{,}1}\\{189{,}2}\end{array}} \\\,\,\,266{,}9\end{array}
−    67,8912,3‾        55,59\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{\,\,\,\,67{,}89}\\{12{,}3}\end{array}} \\\,\,\,\,\,\,\,\,55{,}59\end{array}−189,4123,5‾      65,9\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{189{,}4}\\{123{,}5}\end{array}} \\\,\,\,\,\,\,65{,}9\end{array}−345,6  56,7‾   288,9\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{345{,}6}\\{\,\,56{,}7}\end{array}} \\\,\,\,288{,}9\end{array}−   7,1232,45‾      4,673\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{\,\,\,7{,}123}\\{2{,}45}\end{array}} \\\,\,\,\,\,\,4{,}673\end{array}−23,456  5,678‾    17,778\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{23{,}456}\\{\,\,5{,}678}\end{array}} \\\,\,\,\,17{,}778\end{array}
−123,7 45,6‾      78,1\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{123{,}7}\\{\,45{,}6}\end{array}} \\\,\,\,\,\,\,78{,}1\end{array}−456,2     89,12‾     367,08\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{456{,}2}\\{\,\,\,\,\,89{,}12}\end{array}} \\\,\,\,\,\,367{,}08\end{array}−12,34     1,789‾      10,551\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{12{,}34}\\{\,\,\,\,\,1{,}789}\end{array}} \\\,\,\,\,\,\,10{,}551\end{array}−234,9167,4‾       67,5\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{234{,}9}\\{167{,}4}\end{array}} \\\,\,\,\,\,\,\,67{,}5\end{array}−56,78  3,45‾    53,33\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{56{,}78}\\{\,\,3{,}45}\end{array}} \\\,\,\,\,53{,}33\end{array}
−189,5  78,9‾   110,6\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{189{,}5}\\{\,\,78{,}9}\end{array}} \\\,\,\,110{,}6\end{array}−5,67  2,134‾      3,536\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{5{,}67}\\{\,\,2{,}134}\end{array}} \\\,\,\,\,\,\,3{,}536\end{array}−345,1123,6‾   221,5\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{345{,}1}\\{123{,}6}\end{array}} \\\,\,\,221{,}5\end{array}−67,8912,34‾    55,55\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{67{,}89}\\{12{,}34}\end{array}} \\\,\,\,\,55{,}55\end{array}−456,7234,5‾    222,2\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{456{,}7}\\{234{,}5}\end{array}} \\\,\,\,\,222{,}2\end{array}

Câu 2

1 điểm

Đặt tính rồi tính

78,9 – 34,56 =...23,67 – 7,123 =...456,1 – 189,4 =...
345,9 – 234,5 =...5,678 – 2,134 =...134,56 – 67,89 =...
189,2 – 89,56 =...12,34 – 4,123 =...67,8 – 23,45 =...
456,7 – 345,6 =...23,456 – 5,12 =...345,1 – 167,8 =...
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78,9 – 34,56 = 44,34 −    78,934,56‾    44,34\begin{array}{l}\underline {-\begin{array}{cccccccccccccccccccc}{\,\,\,\,78{,}9}\\{34{,}56}\end{array}} \\\,\,\,\,44{,}34\end{array}23,67 – 7,123 = 16,547 −23,67    7,123‾     16,547\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{23{,}67}\\{\,\,\,\,7{,}123}\end{array}} \\\,\,\,\,\,16{,}547\end{array}456,1 – 189,4 = 266,7 −456,1189,4‾   266,7\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{456{,}1}\\{189{,}4}\end{array}} \\\,\,\,266{,}7\end{array}
345,9 – 234,5 = 111,4 −345,9234,5‾    111,4\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{345{,}9}\\{234{,}5}\end{array}} \\\,\,\,\,111{,}4\end{array}5,678 – 2,134 = 3,544 −5,6782,134‾    3,544\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{5{,}678}\\{2{,}134}\end{array}} \\\,\,\,\,3{,}544\end{array}134,56 – 67,89 = 66,67 −134,56  67,89‾      66,67\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{134{,}56}\\{\,\,67{,}89}\end{array}} \\\,\,\,\,\,\,66{,}67\end{array}
189,2 – 89,56 = 99,64 −189,2   89,56‾      99,64\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{189{,}2{\rm{ }}}\\{\,\,\,89{,}56}\end{array}} \\\,\,\,\,\,\,99{,}64\end{array}12,34 – 4,123 = 8,217 −12,34   4,123‾      8,217\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{12{,}34}\\{\,\,\,4{,}123}\end{array}} \\\,\,\,\,\,\,8{,}217\end{array}67,8 – 23,45 = 44,35 −67,8   23,45‾       44,35\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{67{,}8}\\{\,\,\,23{,}45}\end{array}} \\\,\,\,\,\,\,\,44{,}35\end{array}
456,7 – 345,6 = 111,1 −456,7345,6‾     111,1\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{456{,}7}\\{345{,}6}\end{array}} \\\,\,\,\,\,111{,}1\end{array}23,456 – 5,12 = 18,336 −23,4565,12‾    18,336\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{23{,}456}\\{5{,}12}\end{array}} \\\,\,\,\,18{,}336\end{array}345,1 – 167,8 = 177,3 −345,1167,8‾    177,3\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{345{,}1}\\{167{,}8}\end{array}} \\\,\,\,\,177{,}3\end{array}

Câu 3

1 điểm

Đặt tính rồi tính

456,9 – 189,5 =...12,345 – 6,78 = ...345,6 – 234,5 = ...
5,12 – 1,234 = ...134,2 – 67,8 = ...67,89 – 23,4 = ...
167,9 – 78,9 = ...123,56 – 56,78 = ...456,7 – 345,1 =...
23,67 – 7,89 = ...189,4 – 89,12 = ...5,678 – 2,34 = ...
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456,9 – 189,5 = 267,4 −456,9189,5‾   267,4\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{456{,}9}\\{189{,}5}\end{array}} \\\,\,\,267{,}4\end{array}12,345 – 6,78 = 5,565 −12,3456,78‾      5,565\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{12{,}345}\\{6{,}78}\end{array}} \\\,\,\,\,\,\,5{,}565\end{array}345,6 – 234,5 = 111,1 −345,6234,5‾     111,1\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{345{,}6}\\{234{,}5}\end{array}} \\\,\,\,\,\,111{,}1\end{array}
5,12 – 1,234 = 3,886 −5,12   1,234‾      3,886\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{5{,}12}\\{\,\,\,1{,}234}\end{array}} \\\,\,\,\,\,\,3{,}886\end{array}134,2 – 67,8 = 66,4 −134,2  67,8‾      66,4\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{134{,}2}\\{\,\,67{,}8}\end{array}} \\\,\,\,\,\,\,66{,}4\end{array}67,89 – 23,4 = 44,49 −    67,8923,4‾       44,49\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{\,\,\,\,67{,}89}\\{23{,}4}\end{array}} \\\,\,\,\,\,\,\,44{,}49\end{array}
167,9 – 78,9 = 89 −167,978,9‾     89\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{167{,}9}\\{78{,}9}\end{array}} \\\,\,\,\,\,89\end{array}123,56 – 56,78 = 66,78 −123,56  56,78‾      66,78\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{123{,}56}\\{\,\,56{,}78}\end{array}} \\\,\,\,\,\,\,66{,}78\end{array}456,7 – 345,1 = 111,6 −456,7345,1‾     111,6\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{456{,}7}\\{345{,}1}\end{array}} \\\,\,\,\,\,111{,}6\end{array}
23,67 – 7,89 = 15,78 −23,67  7,89‾    15,78\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{23{,}67}\\{\,\,7{,}89}\end{array}} \\\,\,\,\,15{,}78\end{array}189,4 – 89,12 = 100,28 −189,4    89,12‾     100,28\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{189{,}4}\\{\,\,\,\,89{,}12}\end{array}} \\\,\,\,\,\,100{,}28\end{array}5,678 – 2,34 = 3,338 −   5,6782,34‾       3,338\begin{array}{l}\underline { - \begin{array}{cccccccccccccccccccc}{\,\,\,5{,}678}\\{2{,}34}\end{array}} \\\,\,\,\,\,\,\,3{,}338\end{array}

Câu 4

1 điểm
123,4 – 5,67 =78,9 – 2,345 =
456,7 – 1,23 =234,5 – 12,34 =
89,12 – 6,789 =345,6 – 3,45 =
167,8 – 23,456 =56,78 – 7,123 =
345,9 – 4,56 =189,2 – 5,678 =
12,34 – 2,134 =67,89 – 1,23 =
25,5 – 10,25 =456,1 – 6,12 =
56,7 – 3,456 =123,6 – 4,567 =
189,4 – 12,34 =345,2 – 2,789 =
7,89 – 1,23 =167,9 – 5,67 =
456,8 – 23,45 =89,1 – 3,678 =
12,345 – 6,12 =234,6 – 1,789 =
345,1 – 78,9 =56,78 – 4,56 =
123,7 – 5,678 =189,5 – 2,34 =
67,89 – 3,45 =456,2 – 12,345 =
234,5 – 89,12 =7,123 – 1,234 =
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123,4 – 5,67 = 117,7378,9 – 2,345 = 76,555
456,7 – 1,23 = 455,47234,5 – 12,34 = 222,16
89,12 – 6,789 = 82,331345,6 – 3,45 = 342,15
167,8 – 23,456 = 144,34456,78 – 7,123 = 49,657
345,9 – 4,56 = 341,34189,2 – 5,678 = 183,522
12,34 – 2,134 = 10,20667,89 – 1,23 = 66,66
25,5 – 10,25 = 15,25456,1 – 6,12 = 449,98
56,7 – 3,456 = 53,244123,6 – 4,567 = 119,033
189,4 – 12,34 = 177,06345,2 – 2,789 = 342,411
7,89 – 1,23 = 6,66167,9 – 5,67 = 162,23
456,8 – 23,45 = 433,3589,1 – 3,678 = 85,422
12,345 – 6,12 = 6,225234,6 – 1,789 = 232,811
345,1 – 78,9 = 266,256,78 – 4,56 = 52,22
123,7 – 5,678 = 118,022189,5 – 2,34 = 187,16
67,89 – 3,45 = 64,44456,2 – 12,345 = 443,855
234,5 – 89,12 = 145,387,123 – 1,234 = 5,889

Câu 5

1 điểm
234,56 – 78,9 =12,345 – 3,67 =
456,1 – 123,4 =89,12 – 5,678 =
7,89 – 2,134 =345,9 – 167,8 =
167,4 – 56,78 =23,456 – 6,12 =
345,6 – 89,34 =5,678 – 1,234 =
24,63 – 9,17 =189,5 – 78,9 =
56,7 – 23,45 =456,2 – 234,1 =
123,6 – 7,89 =67,123 – 12,34 =
189,2 – 5,67 =345,7 – 123,56 =
456,8 – 167,9 =23,67 – 2,345 =
89,1 – 3,456 =12,34 – 6,789 =
234,5 – 78,12 =167,8 – 56,7 =
5,12 – 1,23 =345,1 – 189,4 =
67,89 – 23,456 =456,9 – 234,5 =
123,45 – 4,678 =42,31 – 18,92 =
189,6 – 89,1 =56,78 – 12,34 =
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234,56 – 78,9 = 155,6612,345 – 3,67 = 8,675
456,1 – 123,4 = 332,789,12 – 5,678 = 83,442
7,89 – 2,134 = 5,756345,9 – 167,8 = 178,1
167,4 – 56,78 = 110,6223,456 – 6,12 = 17,336
345,6 – 89,34 = 256,265,678 – 1,234 = 4,444
24,63 – 9,17 = 15,46189,5 – 78,9 = 110,6
56,7 – 23,45 = 33,25456,2 – 234,1 = 222,1
123,6 – 7,89 = 115,7167,123 – 12,34 = 54,783
189,2 – 5,67 = 183,53345,7 – 123,56 = 222,14
456,8 – 167,9 = 288,923,67 – 2,345 = 21,325
89,1 – 3,456 = 85,64412,34 – 6,789 = 5,551
234,5 – 78,12 = 156,38167,8 – 56,7 = 111,1
5,12 – 1,23 = 3,89345,1 – 189,4 = 155,7
67,89 – 23,456 = 44,434456,9 – 234,5 = 222,4
123,45 – 4,678 = 118,77242,31 – 18,92 = 23,39
189,6 – 89,1 = 100,556,78 – 12,34 = 44,44

Câu 6

1 điểm
56,78 – 12,34 =345,6 – 123,45 =
189,2 – 7,89 =23,456 – 5,678 =
456,7 – 234,1 =12,34 – 3,123 =
7,123 – 2,56 =89,1 – 6,789 =
134,5 – 56,7 =37,25 – 12,84 =
23,67 – 4,56 =189,4 – 78,9 =
12,345 – 1,234 =456,2 – 234,56 =
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Mở lời giải câu 6

Câu 7

1 điểm
123,45 – 6,78 =345,9 – 167,12 =
51,23 – 27,84 =12,345 – 3,456 =
78,9 – 2,134 =189,4 – 56,7 =
23,67 – 5,678 =67,89 – 12,34 =
345,1 – 89,34 =5,123 – 1,23 =
167,8 – 78,9 =234,56 – 123,4 =
12,34 – 4,567 =456,2 – 189,5 =
56,78 – 23,45 =13,59 – 5,21 =
189,2 – 7,89 =9,99 – 4,62 =
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Mở lời giải câu 7

Câu 8

1 điểm
234,5 – 78,9 =12,34 – 5,678 =
456,1 – 123,67 =89,34 – 2,134 =
7,89 – 3,456 =50 – 28,57 =
167,9 – 56,12 =23,456 – 6,78 =
345,2 – 89,1 =5,123 – 1,234 =
47,12 – 19,73 =189,5 – 67,89 =
56,7 – 23,45 =456,8 – 234,5 =
123,4 – 7,123 =78,9 – 12,34 =
189,6 – 5,67 =345,1 – 167,9 =
5,678 – 2,345 =23,67 – 4,56 =
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Mở lời giải câu 8

Câu 9

1 điểm
78,9 – 23,45 =345,6 – 167,8 =
456,7 – 123,4 =12,345 – 5,67 =
5,678 – 2,134 =189,2 – 56,78 =
134,5 – 7,89 =6,45 – 2,18 =
345,1 – 89,34 =67,123 – 12,34 =
12,34 – 3,456 =456,8 – 234,5 =
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Mở lời giải câu 9

Câu 10

1 điểm
123,4 – 5,678 =8,96 – 0,57 =
456,7 – 234,5 =12,34 – 3,456 =
78,9 – 23,67 =189,5 – 56,78 =
5,123 – 1,234 =234,6 – 89,12 =
167,8 – 7,89 =345,1 – 123,4 =
12,345 – 4,56 =67,89 – 2,134 =
56,78 – 12,34 =456,2 – 189,6 =
189,4 – 78,9 =29,07 – 14,68 =
345,6 – 167,9 =89,34 – 5,678 =
7,89 – 2,345 =134,5 – 56,7 =
234,5 – 123,67 =456,8 – 234,1 =
12,34 – 3,678 =67,123 – 12,45 =
189,2 – 5,67 =345,2 – 167,8 =
56,7 – 23,456 =5,678 – 2,34 =
123,6 – 7,123 =234,9 – 89,34 =
456,1 – 189,5 =12,345 – 4,567 =
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Mở lời giải câu 10
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