| (答え) |
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| (1) |
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× |
|
= |
1 |
= |
|
| 1 |
2 |
1×2 |
1 |
|
|
|
|
| 2 |
3 |
2×3 |
3 |
| |
|
1 |
|
|
| (2) |
|
| |
× |
|
= |
1 |
= |
|
| 2 |
1 |
2×1 |
1 |
|
|
|
|
| 3 |
4 |
3×4 |
6 |
| |
|
2 |
|
|
(3) |
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| |
× |
|
= |
1 |
= |
|
| 2 |
5 |
2×5 |
2 |
|
|
|
|
| 5 |
7 |
5×7 |
7 |
| |
|
1 |
|
|
| (4) |
|
| |
× |
|
= |
1 |
= |
|
| 1 |
4 |
1×4 |
1 |
|
|
|
|
| 8 |
7 |
8×7 |
14 |
| |
|
2 |
|
|
| (5) |
|
| |
× |
|
= |
2 |
= |
|
| 6 |
8 |
6×8 |
16 |
|
|
|
|
| 7 |
9 |
7×9 |
21 |
| |
|
3 |
|
|
| (6) |
|
| |
× |
|
= |
1 1 |
= |
|
| 2 |
3 |
2×3 |
1 |
|
|
|
|
| 3 |
4 |
3×4 |
2 |
| |
|
1 2 |
|
|
| (7) |
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| |
× |
|
= |
1 1 |
= |
|
| 5 |
2 |
5×2 |
1 |
|
|
|
|
| 6 |
5 |
6×5 |
3 |
| |
|
3 1 |
|
|
| (8) |
|
| |
× |
|
= |
1 1 |
= |
|
| 7 |
4 |
7×4 |
1 |
|
|
|
|
| 8 |
7 |
8×7 |
2 |
| |
|
2 1 |
|
|
| (9) |
|
| |
× |
|
= |
1 1 |
= |
|
| 5 |
3 |
5×3 |
1 |
|
|
|
|
| 9 |
5 |
9×5 |
3 |
| |
|
3 1 |
|
|
| (10) |
|
| |
× |
|
= |
2 1 |
= |
|
| 6 |
7 |
6×7 |
2 |
|
|
|
|
| 7 |
9 |
7×9 |
3 |
| |
|
1 3 |
|
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