3.7*0.25+6.3/4,用简便算法计算
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3.7*0.25+6.3/4,用简便算法计算
3.7*0.25+6.3/4,用简便算法计算
3.7*0.25+6.3/4,用简便算法计算
3.7*0.25+6.3/4
=3.7x0.25+6.3x0.25
=(3.7+6.3)x0.25
=10x0.25
=2.5
3.7*0.25+6.3/4
=3.7*1/4+6.3*1/4
=(3.7+6.3)*1/4
=2.5