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