Question

简便计算 2.5×0.6-1.8×0.5=

Answer 1

简便计算如下：

2.5×0.6-1.8×0.5

＝2.5×0.6-0.6×3×0.5

＝2.5×0.6-0.6×1.5

＝（2.5-1.5）×0.6

＝1×0.6

＝0.6

Answer 2

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

Answer 3

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

Answer 4

1.5-0.9=0.6

追答

那个答案做的什么乱七八糟的……要那么复杂吗，0.6是三分之二，0.5是二分之一，一下就出来了不是？

Answer 5

2.5×0.6-0.6×1.5=2.5×0.6-0.6×3×0.5= 0.6x（2.5-1.5）=0.6×1=0.6