23.6×1.02+10.2×7.64这道题的简算

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23.6×1.02+10.2×7.64这道题的简算23.6×1.02+10.2×7.64这道题的简算23.6×1.02+10.2×7.64这道题的简算23.6×1.02+10.2×7.64=(23.6

23.6×1.02+10.2×7.64这道题的简算
23.6×1.02+10.2×7.64这道题的简算

23.6×1.02+10.2×7.64这道题的简算
23.6×1.02+10.2×7.64
=(23.6÷10)×(1.02×10)+10.2×7.64 一个因扩大,另一个因数就要缩小,这样积才不变.
=2.36×10.2+10.2×7.64
=(2.36+7.64)×10.2 乘法分配率
=10×10.2
=102