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1.2×(9.6÷2.4)÷4.8怎么简便运算

=9.6÷4.8x2.25 =2x2.25 =4.5

直接算即可 4.8×1.2-0.78÷2.6 =5.76-0.3 =5.46

1.2×(9.6÷2.4)÷4.8 =1.2x4÷4.8 =4.8÷4.8 =1

(4.8×7.5×8.1)÷(2.4×2.5×2.7) =(4.8÷2.4)x(7.5÷2.5)x(8.1÷2.7) =2x3x3 =18

37.5x4.8-9.6÷0.32 =37.5x8x0.6-30 =300x0.6-30 =180-30 =150

9.6÷1.25÷4.8÷8怎么简便计算 9.6÷1.25÷4.8÷8 =(9.6÷4.8)÷(1.25*8) =2÷10 =0.2

4.8×(4.2-2.7)+4.8 =4.8×1·5+4·8 =4·8×(1·5+1) =4·8×2·5 =4·8×(2+0·5) =4·8×2+0·5×4·8 =9·6+2·4 =12 2.4×9.8÷0.25 =2.4×9.8÷1/4 =2.4×9.8×4 =9·6×9·8 =9·6×(10-0·2) =9·6×10-0·2×9·6 =96-1·92 =94·08

7.5×4.8×6.4÷2.5÷2.4÷3.2 =(7.5÷2.5)×(4.8÷2.4)×(6.4÷3.2)【这是关键的一步】 =3×2×2 =12

分解他们,用短除法,分解成都是2之后再除,该方法只为简单,速度慢,建议直接口算。

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