1.3.9.10怎样加减乘除运算等于24
1: (1 10) × 3 - 9
2: ((1 10) × 3) - 9
3: (3 × (1 10)) - 9
4: 3 × (1 10) - 9
5: (3 × (10 1)) - 9
6: 3 × (10 1) - 9
7: (10 1) × 3 - 9
8: ((10 1) × 3) - 9
答:1)(9+3)×2×1 = 24 2)(9+3)×2÷1 = 24 3)3×9-2-1 = 24 4)3×(9-2+1) = 24 5)(2+1)×9-3 = ...详情>>
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