1.25×9.8-0.2×1.25
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1.25×9.8-0.2×1.25
1.25×9.8-0.2×1.25
1.25×9.8-0.2×1.25
1.25X9.8=12.25一(0.2X1.25=0.25)=12
1.25×9.8-0.2×1.25
7.9*1.25+1.25*0.2-1.25这个怎么简算?
(1.25*8-0.2)*5简算
9.8*62.5*1.25—12.5*0.625*18
简便计算9.8÷1.25÷0.8
9.8*65.2*1.25-12.5*0.652*18
9.8*65.2*1.25-12.5*0.652*18
9.8×65.2×1.25-12.5×0.652×18
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0.5×0.8×0.04×1.25×0.2×0.025
简便运算:9.8*62.5*1.25-12.5*0.625*18
0.5*1.25*32简便计算7.3*9.8简便计算
9.8×65.2×1.25-12.5×0.652×18怎么简便