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脱式计算: 1.08x0.8÷0.27 2.05÷0.82+33.6 44.28÷0.9÷4.1

脱试计算各题1.08*0.8÷0.27=0.864÷0.27=3.22.05÷0.82+33.6=2.5+33.6=36.144.28÷0.9÷4.1=49.2÷4.1=12

36.1

(1)0.75*18÷0.15,=13.5÷0.15,=90;(2)7.28+3.2÷2.5,=7.28+1.28,=8.56;(3)2.05÷0.82+33.6,=2.5+33.6,=36.1;(4)1.08*0.8÷0.27,=0.864÷0.27,=3.2;(5)21.36÷0.8-12.9,=26.7-12.9,=13.8;(6)4.28÷0.9÷4.1,≈4.76÷4.1,≈1.16.

原式=(1.08÷0.27)x0.8=4x0.8=3.2

44.28÷0.9÷4.1脱式计算=49.2÷4.1=12

44.28÷0.82÷3.6=54÷3.6=15

2.05÷0.82+33.6=2.5+33.6=36.1

2.05÷0.82+33.6可以用简便方法脱式计算 解:2.05÷0.82+33.6 =2.5+33.6 =36.1

2.7*0.8÷0.27=2.7÷0.27*0.8=10*0.8=8

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