62×28+71×62+62
解:62×28+71×62+62
=(28+71+1)×62,
=100×62,
=6200.
分析:本題可根據(jù)乘法分配律計(jì)算.
點(diǎn)評(píng):在利用遞等式計(jì)算時(shí),要注意計(jì)算過(guò)程的完整性,中間不要有太大跳躍.
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