3.7*0.25+6.3/4,用简便算法计算
人气:235 ℃ 时间:2020-03-29 23:30:29
解答
3.7*0.25+6.3/4
=3.7x0.25+6.3x0.25
=(3.7+6.3)x0.25
=10x0.25
=2.5
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