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4.8*12.5怎么简便

4×12.5+0.8×12.5 =50+10=60

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

2.1×(12.5×4)×1.2=2.1×60=126

4.8×12.5=(5-2)×12.5=5×12.5-2×12.5=62.5-25=37.5

如图

4.8x2.5x12.5 =6*2..5*0.8*12.5 =15*10 =150

30加上12.5与4.8的积, 和是(90) 30+12.5x4.8 =30+60 =90

(8.4-4.8)÷1.25-0.8 =3.6÷1.25-0.8 =2.88-0.8 =2.08

4.8÷12.5 =(4.8×8)÷(12.5×8) =38.4÷100 =0.384 你好,本题已解答,如果满意 请点右上角“采纳答案”。

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