Mathematics
Senior High
何故3×3×2×2という式になるのか教えて欲しいです。
[7] 5個の数字 0 1 2 3 4 を1個ずつ使って、整数を作る
とき、次のような整数は何個作れるか。 ( 3点×2)
(2) 4桁の奇
千 百 +
3×3×2×2=2436
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