| (解答) |
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| (1) |
同じ数字を何度使ってもよいので、 |
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3×3×3=27 |
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|
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(参考) |
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111,112,113,121,122,123,131,132,133 |
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211,212,213,221,222,223,231,232,233 |
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311,312,313,321,322,323,331,332,333 |
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以上、27通り |
(答え) 27通り |
| (2) |
100の位の数は0以外なので、 |
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3×4×4=48 |
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|
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(参考) |
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100,101,102,103,110,111,112,113,120,121,122,123,130,131,132,133 |
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200,201,202,203,210,211,212,213,220,221,222,223,230,231,232,233 |
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300,301,302,303,310,311,312,313,320,321,322,323,330,331,332,333 |
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以上、48通り |
(答え) 48通り |
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