5.7×4+1.85+3.6+2.4+6.6的简简便运算
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5.7×4+1.85+3.6+2.4+6.6=(5+0.7)x4+1.85+6+6.6=20+2.8+1.85+12.6=21.85+15.4=37.25
咨询记录 · 回答于2022-09-16
5.7×4+1.85+3.6+2.4+6.6的简简便运算
5.7×4+1.85+3.6+2.4+6.6=(5+0.7)x4+1.85+6+6.6=20+2.8+1.85+12.6=21.85+15.4=37.25
5.7×4+1.85+3.6+2.4+6.6=5.7x2+5.7x2+3.6+9+1.85=(11.4+3.6)+(10.85+11.4)=15+22.25=37.25
还有需要补充的吗亲