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(7.2×3.3×1.8)÷(0.24×11×9)简便

0.24比1.8=24:180=(24÷12):(180÷12)=2:15,

4.9*1.8 ÷0.24=4.9*(2-0.2) ÷0.24=(9.8-0.98) ÷0.24 =8.82 ÷0.24=36.75

(0.57乘0.56乘7.2 )除以(1.8乘0.19乘0.28)简便计算=(0.57÷0.19)*(0.56÷0.28)*(7.2÷1.8)=3*2*4=24

7.2*61.3+73.8*2.8=7.2*61.3+73.8*10-73.8*7.2=7.2*(61.3-73.8)+738=7.2*(-12.5)+738=0.9*8*(-12.5)+738=-90+738=648

7.2*14.3÷0.9÷1.3=7.2÷0.9*(14.3÷1.3)=8*11=88

7.2*0.4+2.4*1.8=7.2*0.4+7.2*0.6=7.2*(0.4+0.6)=7.2*1=7.2,请采纳,谢谢.

7.2*0.24+0.72*7.6怎么简算 解:根据提取公因式的运用,原式=0.72x2.4+0.72x7.6=0.72x(2.4+7.6)=0.72x100=72

1972*37+197.2*1.9-986*70.38=1972*(37+0.19-35.19)=1972*2=39447.2*4.5*9.3/(1.8*1.5*3.1)=4*3*3=3612.6*7.6*2.32/1.9/1.4/2.9=12.6*7.6*2.32/(1.9*1.4*2.9)=9*4*0.8=28.8

(7.2-0.24)*1.25=7.2*1.25-0.24*1.25=9*(0.8*1.25)-0.3*(0.8*1.25)=9*1-0.3*1=9-0.3=8.7你好,本题已解答,如果满意请点右下角“采纳答案”.

38.3*7.6+11*9-25+427*0.24 =38.3*7.6+(99-25)+42.7*2.4 =38.3*7.6+38.3*2.4+4.4*2.4 +74=38.3*(7.6+2.4)+10.56+75=38.3*10+85.56=383+85.56=468.56

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