| (答え) |
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|
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| (1) |
|
| |
× |
|
= |
1 1 |
= |
|
| 3 |
5 |
3×5 |
1 |
|
|
|
|
| 10 |
12 |
10×12 |
8 |
| |
|
2 4 |
|
|
| (2) |
|
| |
× |
|
= |
1 3 |
= |
|
| 7 |
9 |
7×9 |
3 |
|
|
|
|
| 12 |
14 |
12×14 |
8 |
| |
|
4 2 |
|
|
(3) |
|
| |
× |
|
= |
1 1 |
= |
|
| 6 |
5 |
6×5 |
1 |
|
|
|
|
| 25 |
18 |
25×18 |
15 |
| |
|
5 3 |
|
|
| (4) |
|
| |
× |
|
= |
1 1 |
= |
|
| 9 |
4 |
9×4 |
1 |
|
|
|
|
| 16 |
27 |
16×27 |
12 |
| |
|
4 3 |
|
|
| (5) |
|
| |
× |
|
= |
1 1 |
= |
|
| 7 |
8 |
7×8 |
1 |
|
|
|
|
| 24 |
35 |
24×35 |
15 |
| |
|
3 5 |
|
|
| (6) |
|
| |
× |
|
= |
1 1 |
= |
|
| 5 |
4 |
5×4 |
1 |
|
|
|
|
| 36 |
45 |
36×45 |
81 |
| |
|
9 9 |
|
|
| (7) |
|
| |
× |
|
= |
1 1 |
= |
|
| 5 |
8 |
5×8 |
1 |
|
|
|
|
| 56 |
25 |
56×25 |
35 |
| |
|
7 5 |
|
|
| (8) |
|
| |
× |
|
= |
2 1 |
= |
|
| 6 |
5 |
6×5 |
2 |
|
|
|
|
| 55 |
21 |
55×21 |
77 |
| |
|
11 7 |
|
|
| (9) |
|
| |
× |
|
= |
1 1 |
= |
|
| 8 |
7 |
8×7 |
1 |
|
|
|
|
| 63 |
48 |
63×48 |
54 |
| |
|
9 6 |
|
|
| (10) |
|
| |
× |
|
= |
1 1 |
= |
|
| 9 |
8 |
9×8 |
1 |
|
|
|
|
| 64 |
81 |
64×81 |
72 |
| |
|
8 9 |
|
|
| |
|
|
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