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0.125 9.8 8简便计算

解:依题意得算式,0.125*3.89*8=0.125*8*3.89=1*3.89=3.89102*1.25=(100+2)*1.25=100*1.25+2*1.25=125+2.5=127.59.8*3.56+5.44*9.8=9.8*(3.56+5.44)=(10-0.2)*9=10*9-0.2*9=90-1.8=88.2

=1/8*9=9/8

9除以0.125怎么简便计算9÷0.125=(9*8)÷(0.125*8)=72÷1=72

0.125*8.8=0.125*(8+0.8)=0.125*8+0.125*0.8=1+0.1=1.1

先算0.125x8=1再乘3.3=3.3

9÷0.125=(9*8)÷(0.125*8)=72÷1=72你好,本题已解答,如果满意,请点右上角“采纳答案”,支持一下.

你好:0.125=1/80.125x8=1/8x8=1你好:0.125x8=(0.1+0.02+0.005)x8=0.1x8+0.02x8+0.005x8=0.8+0.16+0.04=1

9除以八分之一=9乘以8=72

0.125x8.8 =0.125*8*1.1 =1*1.1 =1.1

9/0.125=(9x8)/(0.125x8)=72/1=72

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