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0.75 18 0.5简使计算

18.5 - (0.5 * 0.5 + 0.75) = 18.5 - 1 = 17.5

0.75*18÷0.15=0.75÷0.15*18=5*18=90

26.7-0.5*0.5-0.75 =26.7-(0.25+0.75) =26.7-1 =25.7

10-0.75 0.25/0.5简便计算10-0.75 0.25/0.5=10-0.75+0.5=9.25+0.5=9.75

26.7-0.75-0.5*0.5=26.7-0.75-0.25=26.7-(0.75+0.25)=26.7-1=25.7

0.15*0.15x90=1x90=90

把后面3.93拆分一下,提取相同项,使计算简便.18*0.75-3.6-0.33=18*0.75-18*0.2-0.33=18*(0.75-0.2)-0.33=18*0.55-0.33=18*0.5+18*0.05-0.33=9+0.9-0.33=9.9-0.33=9.57

0.75*18*0.2的简便计算方法脱式计算0.75*18*0.2=18*(0.75*0.2)=18*0.15=2.7

6.8乘0.75除0.5

脱式计算6.8X0.75÷0.5=5.1÷0.5=10.2

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