07整數四則計算03分配律(是非01)
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(1) 算式(64+36)×12與64+36×12的答案相同。
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(2) 算式43×28+28×57與(43+57)×28的答案相同。
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(3) 算式15×22-15×18與15×(22-18)的答案相同。
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(4) 算式(852+448)×20與852×20+448×20的答案相同。
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(5) 算式289×40+60與289×(40+60)的答案相同。
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