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一点二五乘以三十二乘以二点五用脱式计算

1.25×32×2.5 =(1.25×8)×(4×2.5) =10×10 =100 你好,本题已解答,如果满意 请点右上角“采纳答案”。

8/9 *15/32 *3/20 =5/12 *3/20 =1/16

脱式计算如下图

3.2×0.25×12.5 =(4×0.8)×0.25×12.5 =(4×0.25)×(0.8×12.5) =1×10 =10

0.125×3/4+1/8×8.25+12.5% =1/8×(3/4+8.25+1) =1/8×10 =1.25

(5/9+3/4+7/12)×36 =5/9×36+3/4×36+7/12×36 =20+27+21 =68 56×4/57 =(57-1)×4/57 =57×4/57-4/57 =4-4/57 =3又53/57

解:依题意得算式, 5分之2-1.2×4分之3-12分之7 =5分之2-5分之6×4分之3-12分之7 =5分之2-10分之9-12分之7 =60分之24-60分之54-60分之35 =60分之(24-54-35) =-60分之65 =-12分之13 即5分之2-1.2×4分之3-12分之7=-12分之13

(488+32×5)÷12 =(488+160)÷12 =648÷12 =54

0.25×3.2×12.5×13/40等于多少脱式计算 解: 0.25×3.2×12.5×13/40 =(0.25×4)×(0.8×12.5)×13/40 =1×10×13/40 =13/4

3×(2/15+1/12)-2/5 =3×13/60-2/5 =13/20-2/5 =1/4

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