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急急急,2.4x0.19+0.24x8.1简便运算脱式计算怎么...

=2.4×0.19+2.4×0.81 =2.4×(0.19+0.81) =2.4×1 =2.4

8.9×0.1+0.1×1 =0.1×(8.9+0.1) =0.1×9 =0.9

见图

10.1*8-0.8 =10.1*8-0.1*8 =(10.1-0.1)*8 =10*8 =80

5/8-(3/8+1/12)的脱式计算。 5/8-(3/8+1/12) =5/8-3/8-1/12 =1/4-1/12 =1/3

(1.84+0.8)×50 =1.84×50+0.8×50 =92+40 =132 你好,本题以解答,如果满意,请点右上角“采纳答案”,支持一下。

0.8×1.2÷0.8×1.2 =(0.8÷0.8)×(1.2×1.2) =1×1.44 =1.44

1.68÷0.8+1.52 = 2.1+1.52 =3.62

=(1.2+0.8)乘2.5=2乘2.5=5

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