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2.5x0.6%1.8x0.5怎么简便计算

2.5x0.6-1.8x0.5 =0.5×5×0.6-0.3×6×0.5 =0.5×3-0.3×3 =0.2×3 =0.6

2.5×0.6—1.8×0.5 =2.5×0.6-3×0.6×0.5 =2.5×0.6-1.5×0.6 =(2.5-1.5)×0.6 =1×0.6 =0.6

2.5x0.6-1.8x0.5 =2.5x0.6-0.6x1.5 =(2.5-1.5)x0.6 =1x0.6 =0.6

=0.5×(5×0.6)-0.5×1.6=0.5×(3-1.6)=0.5×1.4=0.7,希望我的回答能帮到你

15.2-1.8x0.5-9.1 =15.2-(2-0.2)x0.5-9.1 =15.2-2x0.5+0.2x0.5-9.1 =15.2-(1-0.1+9.1) =15.2-10 =5.2 希望采纳。

3/5×18.8+5.2×0.6+0.6 =0.6x18.8+0.6x5.2+0.6x1 =0.6x(18.8+5.2+1) =0.6x25 =15

6.8x0.5 =3.4x2x0.5 =3.4

简便计算这一块其实多数都用到乘法分配律和结合律,还有乘法的性质,一定要熟练掌握,灵活运用,还要注意关观察式子中各数量之间的关系哦第一个要么多个1要么少个69999x1111+3333x6667=3333x3x1111+3333x6667=3333x3333+3333x6667=3333x(3333+6...

=2.73*3=3(2+0.7+0.03)=6+2.1+0.09=8.19

等等,我写一下

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