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39÷1.5%0.15×0.2怎样简便计算

如果你的计算器支持“运算规则”,直接输入39÷1.5-0.15×0.2最后按=就可以。 如果你的计算器不支持“运算规则”,按39÷1.5,按M+,0.15×0.2,按M-,最后再按MR即可得到计算结果。

25.97 解析: 39÷1.5-0.15×0.2 =13÷0.5-0.15×(1/5) =26-0.03 =25.97

1.5Ⅹ2.9+0.15简便计算 =1.5x29+1.5x0.1 =1.5x(2.9+0.1) =1.5x3 =4.5

解:4.8÷0.15+2.4x1.5 =4.8x100/15+2.4x1.5 =480/15+(2+0.4)x1.5 =(450+30)/15+3+0.6 =30+2+3+0.6 =35.6

利用乘法结合律。

=2.6×1.5+1.5×3.4 =1.5×(2.6+3.4) =1.5×6 =9

98.3*0.15+6.17*1.5 =98.3*0.15+61.7*0.15 =(98.3+61.7)*0.15 =160X0.15 =24

4.05÷0.15-2.4×1.5 =27-3.6 =23.4

先计算15.6/1.5,得出为 10.4,然后再计算10.5-10.4=0.1,最后算3.2*0.1=0.32 答案为0.32

15÷0.45=100/3 0.45÷1.5=0.3 9/20 9÷0.45=20 0.45=45%

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