0.75除以(0.15乘0.4)递等式
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![0.75除以(0.15乘0.4)递等式](/uploads/image/f/30763-19-3.jpg?t=0.75%E9%99%A4%E4%BB%A5%280.15%E4%B9%980.4%29%E9%80%92%E7%AD%89%E5%BC%8F)
这个没有简算3.6除以0.4减1.2乘5=9-6=3
6.3÷(5.25×0.8)=6.3÷[5×0.8+0.25×0.8]=6.3÷4.2=3/236.4÷0.4×4.7+4.7×9=91×4.7+4.7×9=(91+9)×4.7=100×4.7=47
0.81/0.27=30.75/0.25=30.84/0.24=7/2原式=3*3*7/2=63/2
=10再问:列竖式再答:
(25.9—()乘0.2)除以0.4=36(25.9—()×0.2)=36×0.425.9-()×0.2=14.4()×0.2=25.9-14.4()×0.2=11.5()=11.5÷0.2()=57
30.4÷16-3.25×0.4=30.4×1/16-13/4×0.4=7.6/4-5.2/4=(7.6-5.2)/4=2.4/4=0.6
18.76乘9.9加1.876=18.76*9.9+18.76*0.1=18.76*(9.9+0.1)=18.76*10=187.615.7除以(15.7除以0.4)=15.7除以(15.7/0.4)
72除以0.4减7.2乘0.4=72*2.5+7.2*0.4=7.2*25+7.2*0.4=7.2*(25+0.4)=7.2*25.4再问:您可以教我这种方法吗?拜托了再答:这里用了乘法的分配率
5.6除以0.75加4/3乘0.4=5.6÷4分之3+3分之4*0.4=5.6*3分之4+3分之4*0.4=(5.6+0.4)*3分之4=6*3分之4=8
四又三分之二乘0.72除以0.15乘四分之一=三分之14×3×0.24÷0.15×0.25=14×0.24÷0.15×0.25=14×0.8×0.3÷0.3÷0.5×0.5×0.5=14×0.8×0.
0.75÷2.5×6.4=0.3×6.4=1.92答:积是1.92.
4936*(0.75*42.7-0.573*25+57.3)/3=4936*(0.75*42.7-25*0.573+100*0.573)/3=4936*[0.75*42.7+(100-25)*0.57
3.87除以(38.7乘0.4)=3.87÷38.7÷0.4=0.1÷0.4=0.25
15÷0.15×0.4=100×0.4=40再问:15除以0.25简便计算
(0.75除以0.2)除以0.25乘25%=0.75÷0.2×(25%÷0.25)=3.75×1=3.75
=0.64÷0.4×20=1.6×20=32
0.08再答:0.8再问:过程再答:
7.8×0.75+4.27÷1.4=3.9×2×0.75+4.27×5/7=3.9×1.5+0.61×5=3.9×1.5+6.1×0.5=(3.9+6.1)×0.5+3.9×1=5+3.9=8.9--
1乘以0.4除以1乘0.4得多少?1乘0.4=0.4除1=0.4乘0.4=0.1625乘4除以0.25乘4得多少?25乘以4=100除以0.25=400乘4=1600