几乘4=15

几乘4=15

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15/4 = 3.75
3.75*4=15

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(4分之15)×4=15

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15÷4=3.75
3.75×4=15

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几×4=15
15÷4=3.75
3.73×4=15

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15?4

15?4×4=15

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