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888×5+111×55 的简便运算
人气:409 ℃ 时间:2020-05-01 07:29:40
解答
888×5+111×55
=8x111x5+111x55
=111x(40+55)
=111x(100-5)
=111x100-111x5
=11100-555
=10545
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