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4.8×12.5的简便运算

2.1乘12.5乘4.8,该怎么简便运算的

12.5x4.8 =12.5x8x0.6 =100x0.6 =60

4.8×10.8×12.5 =(0.6×10.8)×(8×12.5) =6.48×100 =648

8.08×12.5 =(8+0.08)×12.5 =8×12.5+0.08×12.5 =100+1 =101

4.8*12+5.2*12 =12*(4.8+5.2) =12*10 =120

8.4×12.5 =2.1×(4×12.5) =2.1×50 =105 你好,本题已解答,如果满意 请点右下角“采纳答案”。

4.8×0.8×12.5 =0.8*12.5*4.8 =10*4.8 =48 满意采纳奥 有疑问请追问~

解: 1.78×12.5-8 =1.78x12.5-12.5x0.64 =12.5x(1.78-0.64) =12.5x1.14 =12.5x1+12.5x0.1+12.5x0.04 =12.5+1.25+0.5 =13.75+0.5 =14.25

16×8.5×12.5 =8.5*2*(8*12.5) =17*100 =1700 希望能帮到你,请采纳正确答案. 你的点赞或采纳是我继续帮助其他人的动力

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