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4.4加4.4乘12加13乘5.6简便运算怎么算
人气：194 ℃　时间：2020-01-28 09:02:54
解答
4.4+4.4x12+13x5.6
=4.4x(1+12)+5.6x13
=4.4x13+5.6x13
=(4.4+5.6)x13
=10x13
=130
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