Lời giải Bài tập Toán 3 Bài 4.1. Phép nhân (không nhớ) trong phạm vi 1 000 có đáp án

Câu 1

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

$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{14}\\{\,\,2}\end{array}} \\\,\,28\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{21}\\{\,\,4}\end{array}} \\\,\,\,84\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{32}\\{\,\,2}\end{array}} \\\,\,\,64\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{41}\\{\,\,2}\end{array}} \\\,\,\,82\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{52}\\{\,\,2}\end{array}} \\\,104\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{62}\\{\,\,3}\end{array}} \\186\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{71}\\{\,\,\,2}\end{array}} \\\,142\end{array}$
$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{23}\\{\,\,2}\end{array}} \\\,\,46\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{31}\\{\,\,6}\end{array}} \\186\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{42}\\{\,\,2}\end{array}} \\\,\,\,84\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{54}\\{\,\,2}\end{array}} \\108\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{61}\\{\,\,7}\end{array}} \\427\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{73}\\{\,\,2}\end{array}} \\\,146\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{83}\\{\,\,2}\end{array}} \\166\end{array}$
$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{12}\\{\,\,3}\end{array}} \\\,\,36\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{22}\\{\,\,4}\end{array}} \\\,\,\,88\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{33}\\{\,\,2}\end{array}} \\\,\,\,66\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{43}\\{\,\,2}\end{array}} \\\,\,\,86\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{53}\\{\,\,3}\end{array}} \\159\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{64}\\{\,\,2}\end{array}} \\128\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{74}\\{\,\,2}\end{array}} \\148\end{array}$
$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{13}\\{\,\,3}\end{array}} \\\,\,39\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{22}\\{\,\,3}\end{array}} \\\,\,\,66\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{32}\\{\,\,4}\end{array}} \\128\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{42}\\{\,\,\,3}\end{array}} \\\,126\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{52}\\{\,\,4}\end{array}} \\208\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{64}\\{\,\,\,2}\end{array}} \\\,128\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{76}\\{\,\,\,1}\end{array}} \\\,\,\,76\end{array}$
$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{11}\\{\,\,8}\end{array}} \\\,\,\,88\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{21}\\{\,\,\,2}\end{array}} \\\,\,\,42\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{31}\\{\,\,\,4}\end{array}} \\\,124\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{41}\\{\,\,\,5}\end{array}} \\\,205\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{52}\\{\,\,\,3}\end{array}} \\\,156\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{64}\\{\,\,\,2}\end{array}} \\\,128\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{77}\\{\,\,\,1}\end{array}} \\\,\,\,77\end{array}$
$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{12}\\{\,\,\,4}\end{array}} \\\,\,\,48\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{23}\\{\,\,\,3}\end{array}} \\\,\,\,69\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{31}\\{\,\,\,3}\end{array}} \\\,\,\,93\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{44}\\{\,\,\,2}\end{array}} \\\,\,\,\,88\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{54}\\{\,\,\,1}\end{array}} \\\,\,\,54\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{91}\\{\,\,\,3}\end{array}} \\\,273\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{43}\\{\,\,\,2}\end{array}} \\\,\,\,\,86\end{array}$
$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{14}\\{\,\,2}\end{array}} \\\,\,\,28\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{72}\\{\,\,\,4}\end{array}} \\\,288\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{72}\\{\,\,\,3}\end{array}} \\\,216\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{34}\\{\,\,2}\end{array}} \\\,\,\,68\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{71}\\{\,\,\,2}\end{array}} \\\,142\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{62}\\{\,\,\,2}\end{array}} \\\,124\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{97}\\{\,\,\,1}\end{array}} \\\,\,\,97\end{array}$
$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{62}\\{\,\,\,4}\end{array}} \\\,248\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{52}\\{\,\,\,2}\end{array}} \\\,104\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{21}\\{\,\,\,6}\end{array}} \\\,126\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{14}\\{\,\,\,1}\end{array}} \\\,\,\,\,14\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{24}\\{\,\,\,2}\end{array}} \\\,\,\,\,48\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{19}\\{\,\,\,1}\end{array}} \\\,\,\,\,19\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{93}\\{\,\,\,2}\end{array}} \\\,186\end{array}$

Câu 2

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

$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{123}\\{\,\,\,\,\,\,3}\end{array}} \\\,\,\,369\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{221}\\{\,\,\,\,\,\,4}\end{array}} \\\,884\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{411}\\{\,\,\,\,\,\,2}\end{array}} \\\,822\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{111}\\{\,\,\,\,\,\,7}\end{array}} \\\,\,\,777\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{222}\\{\,\,\,\,\,\,4}\end{array}} \\\,\,\,\,888\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{333}\\{\,\,\,\,\,\,3}\end{array}} \\\,\,\,999\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{444}\\{\,\,\,\,\,\,2}\end{array}} \\\,\,\,\,888\end{array}$
$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{132}\\{\,\,\,\,\,\,4}\end{array}} \\\,\,\,\,528\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{231}\\{\,\,\,\,\,\,3}\end{array}} \\\,693\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{432}\\{\,\,\,\,\,\,2}\end{array}} \\\,\,\,\,864\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{121}\\{\,\,\,\,\,4}\end{array}} \\\,\,484\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{212}\\{\,\,\,\,\,\,4}\end{array}} \\\,\,\,\,848\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{313}\\{\,\,\,\,\,\,3}\end{array}} \\\,\,\,939\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{424}\\{\,\,\,\,\,\,2}\end{array}} \\\,\,\,848\end{array}$
$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{211}\\{\,\,\,\,\,\,3}\end{array}} \\\,633\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{999}\\{\,\,\,\,\,\,1}\end{array}} \\\,\,\,999\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{323}\\{\,\,\,\,\,\,3}\end{array}} \\\,\,\,969\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{331}\\{\,\,\,\,\,\,3}\end{array}} \\\,993\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{222}\\{\,\,\,\,\,\,4}\end{array}} \\\,\,\,\,888\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{394}\\{\,\,\,\,\,\,1}\end{array}} \\\,\,\,394\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{625}\\{\,\,\,\,\,\,1}\end{array}} \\\,\,\,625\end{array}$
$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{421}\\{\,\,\,\,\,\,2}\end{array}} \\\,842\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{525}\\{\,\,\,\,\,\,1}\end{array}} \\\,\,\,525\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{642}\\{\,\,\,\,\,\,0}\end{array}} \\\,\,\,\,\,\,\,\,\,0\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{424}\\{\,\,\,\,\,\,2}\end{array}} \\\,\,\,\,848\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{131}\\{\,\,\,\,\,\,3}\end{array}} \\\,393\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{646}\\{\,\,\,\,\,\,1}\end{array}} \\\,\,\,646\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{423}\\{\,\,\,\,\,\,2}\end{array}} \\\,846\end{array}$
$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{122}\\{\,\,\,\,\,\,4}\end{array}} \\\,\,\,488\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{211}\\{\,\,\,\,\,\,2}\end{array}} \\\,\,\,\,422\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{322}\\{\,\,\,\,\,\,3}\end{array}} \\\,\,\,966\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{221}\\{\,\,\,\,\,\,4}\end{array}} \\\,\,\,\,884\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{111}\\{\,\,\,\,\,\,9}\end{array}} \\\,\,\,999\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{341}\\{\,\,\,\,\,\,2}\end{array}} \\\,\,\,\,682\end{array}$	$\begin{array}{l}\underline { \times \begin{array}{cccccccccccccccccccc}{101}\\{\,\,\,\,\,\,7}\end{array}} \\\,707\end{array}$

Câu 3

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

12 × 2 = 24	13 × 3 = 39	21 × 3 = 63	14 × 2 = 28
31 × 2 = 62	22 × 3 = 66	11 × 4 = 44	32 × 2 = 64
24 × 2 = 48	33 × 2 = 66	13 × 2 = 26	21 × 2 = 42
23 × 3 = 69	23 × 3 = 69	12 × 4 = 48	31 × 3 = 93
32 × 3 = 96	11 × 2 = 22	32 × 2 = 64	13 × 3 = 39
21 × 4 = 84	12 × 3 = 36	21 × 3 = 63	23 × 2 = 46
22 × 4 = 88	33 × 3 = 99	11 × 3 = 33	24 × 2 = 48

Câu 4

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

221 × 3 = 663	225 × 1 = 225	212 × 3 = 636	144 × 2 = 288
234 × 2 = 468	324 × 2 = 648	432 × 2 = 864	213 × 3 = 639
342 × 2 = 684	221 × 4 = 884	222 × 3 = 666	333 × 2 = 666
233 × 3 = 699	321 × 3 = 963	312 × 3 = 936	423 × 2 = 846
244 × 2 = 488	135 × 1 = 135	343 × 2 = 686	231 × 3 = 693
223 × 2 = 446	242 × 2 = 484	414 × 2 = 828	441 × 2 = 882
341 × 2 = 682	444 × 2 = 888	433 × 2 = 866	424 × 2 = 848

Câu 5

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

123 × 2 = 246	12 × 1 = 12	231 × 3 = 693	21 × 4 = 84
22 × 3 = 66	132 × 3 = 396	11 × 2 = 22	243 × 2 = 486
111 × 4 = 444	23 × 2 = 46	321 × 2 = 642	12 × 3 = 36
31 × 3 = 93	213 × 2 = 426	13 × 1 = 13	122 × 2 = 244
141 × 2 = 282	32 × 2 = 64	112 × 3 = 336	23 × 3 = 69
12 × 4 = 48	232 × 2 = 464	21 × 2 = 42	131 × 3 = 393
322 × 2 = 644	11 × 3 = 33	143 × 2 = 286	22 × 2 = 44
13 × 2 = 26	212 × 3 = 636	31 × 2 = 62	113 × 3 = 339
221 × 2 = 442	14 × 1 = 14	132 × 2 = 264	33 × 3 = 99
11 × 4 = 44	321 × 3 = 963	23 × 0 = 0	142 × 2 = 284
241 × 2 = 482	13 × 3 = 39	122 × 3 = 366	32 × 3 = 96

Câu 6

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

111 × 7 = 777	85 × 1 = 85	231 × 2 = 462	21 × 3 = 63
23 × 3 = 69	132 × 2 = 264	11 × 4 = 44	243 × 2 = 486
111 × 3 = 333	23 × 2 = 46	321 × 2 = 642	12 × 4 = 48
31 × 2 = 62	213 × 2 = 426	13 × 3 = 39	122 × 3 = 366
141 × 2 = 282	32 × 3 = 96	112 × 2 = 224	23 × 3 = 69
12 × 3 = 36	232 × 2 = 464	21 × 2 = 42	131 × 3 = 393
322 × 2 = 644	11 × 2 = 22	143 × 2 = 286	22 × 2 = 44
13 × 2 = 26	212 × 2 = 424	31 × 3 = 93	113 × 2 = 226
221 × 2 = 442	14 × 2 = 28	132 × 3 = 396	33 × 3 = 99

Câu 7

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

1 × 157 = 157	23 × 2 = 46	31 × 2 = 62	44 × 2 = 88
100 × 2 = 200	111 × 2 = 222	222 × 2 = 444	333 × 2 = 666
444 × 2 = 888	13 × 2 = 26	24 × 2 = 48	32 × 2 = 64
43 × 2 = 86	101 × 2 = 202	112 × 2 = 224	223 × 2 = 446
334 × 2 = 668	443 × 2 = 886	12 × 3 = 36	21 × 3 = 63
33 × 3 = 99	100 × 3 = 300	111 × 3 = 333	222 × 3 = 666
333 × 3 = 999	13 × 3 = 39	23 × 3 = 69	11 × 4 = 44
22 × 4 = 88	111 × 4 = 444	222 × 4 = 888	10 × 5 = 50
11 × 6 = 66	11 × 7 = 77	10 × 8 = 80	11 × 9 = 99

Câu 8

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

10 × 5 = 50	13 × 3 = 39	11 × 4 = 44	14 × 2 = 28
23 × 2 = 46	21 × 3 = 63	22 × 4 = 88	11 × 5 = 55
31 × 2 = 62	33 × 3 = 99	111 × 4 = 444	100 × 6 = 600
44 × 2 = 88	100 × 7 = 700	111 × 6 = 666	111 × 7 = 777
100 × 8 = 800	111 × 8 = 888	100 × 9 = 900	111 × 9 = 999

Câu 9

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

222 × 2 = 444	11 × 4 = 44	32 × 3 = 96	10 × 5 = 50
21 × 3 = 63	32 × 2 = 64	111 × 3 = 333	100 × 2 = 200
12 × 2 = 24	23 × 2 = 46	31 × 3 = 93	44 × 2 = 88
101 × 2 = 202	112 × 2 = 224	223 × 2 = 446	334 × 2 = 668
13 × 3 = 39	22 × 4 = 88	111 × 4 = 444	11 × 8 = 88
100 × 7 = 700	111 × 6 = 666	100 × 8 = 800	111 × 7 = 777
10 × 9 = 90	10 × 8 = 80	111 × 8 = 888	100 × 1 = 100
33 × 3 = 99	21 × 2 = 42	123 × 2 = 246	111 × 2 = 222