文杰 asked in 科學及數學數學 · 7 years ago

試以「乘除運算交換律」作答

5600÷(28÷3)=____

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  • 7 years ago
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    拆括號,括號入面的除要變乘

    5600÷(28÷3)

    =5600÷28x3

    =(5600÷28)x3

    =200x3

    =600

    拆括號:除變乘.乘變除.加變減.減變加.

    Source(s): 乘除運算交換律
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