Question

1.25-1.25x0.8简便运算

Answer 1

1.25-1.25×0.8=1.25-1=0.25，或1.25-1.25×0.8=1.25×（1-0.8）=1.25×0.2=0.25

Answer 2

1.25-1.25×0.8
=1.25×1-1.25×0.8
=1.25×（1-0.8）
=1.25×0.2
=0.25
望采纳 谢谢~~