Question

1.6✘2.5+4✘0.25-2.5的简便方法怎么做？

这个题的简便方法怎么做

Answer 1

解:简便运算如下:
1.6x2.5+4x0.25-2.5
=1.6x2.5+0.4x2.5-2.5
=2.5x(1.6+0.4-1)
=2.5x(2-1)
=2.5x1
=2.5

Answer 2

简便计算如下
1.6×2.5+4×0.25-2.5
=1×2.5+0.6×2.5+1−2.5
=2.5+1.5+1-2.5
=2.5-2.5+1.5+1
=2.5

Answer 3

1.6✘2.5+4✘0.25-2.5
=2.5X(1.6-1)+4✘0.25
=2.5X0.6+2.5X0.4
=2.5X(0.6+0.4)
=2.5

Answer 4

1.6×2.5+4×0.25－2.5
＝1.6×2.5+0.4×2.5－2.5×1
＝（1.6+0.4－1）×2.5
＝1×2.5
＝2.5

Answer 5

1.6*2.5+4*0.25-2.5
=1.6*2.5+0.4*2.5-2.5
=（1.6+0.4-1）*2.5
=1*2.5
=2.5