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2.86*4.96+2.48*4.28用乘法分配律怎么解答?
人气:134 ℃ 时间:2020-06-14 03:15:48
解答
2.86*4.96+2.48*4.28
=2.86*2*2.48+2.48*4.28
=2.48*(5.72+4.28)
=2.48*10
=24.8
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