那你就先算后面的 再算括号里的 之后做除法就可以
(0.55-1.8×0.3)÷2.5×0.4可以巧算吗?
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相关问题
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0.55×30.4+0.48×52.5 巧算
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0.1×0.2×0.3×0.4×0.5×0.6×0.7×0.8×0.9的巧算方法.
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帮我做几道速算与巧算的题目,0.1÷(0.2÷0.3)÷(0.3÷0.4)÷(0.4÷0.5)(9.7×3.2+3.2×
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51.6÷[(3.4-1.25)×0.8]巧算
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1÷0.5= 5÷40= 2.4×3= 0.8×0.5= 12-8.9= 3.2÷0.8= 4.01÷100= 1.7×
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口算 5×4=6.4÷0.8=7.2×0.01=10÷4=0.36×2=1÷0.125=0.25×8=8.1÷0.3=0
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能简算的要简算.9-4.8÷6×50.5 (1.4×0.3+2.46)÷1.8 (2.5 ÷2+2÷2.5)×0.4
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能简算的要简算 (1) -5÷7+ ×2= (2) ×0.25+ ÷4= (3)4.5÷[(0.5+0.75)×1.2]
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看谁算得又对又快.1.5×2= 3.6÷3= 8.7×1= 4.2×0.3= 4.8×0.4= 2.8÷0.7= 1.7
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口算4.8÷3= 1.8×0.5= 0.04×5= 0÷8.13= 25.2÷6= 3.5×0.07= 3.6÷1.8=