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41.6×7.2+4.16×28简便运算
人气:190 ℃ 时间:2020-05-09 09:29:43
解答
41.6×7.2+4.16×28
=41.6×7.2+41.6×2.8
=41.6×(7.2+2.8)
=41.6×10
=416
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