Question

0.4×(2.5×0.25)简便运算

Answer 1

0.4x（2.5x0.25）
=（0.4x2.5）x0.25
=1x0.25
=0.25

追答

望采纳

Answer 2

0.4*(2.5*0.25)=(0.4*2.5)*0.25=1*0.25=0.25

Answer 3

0.4×2.5×0.25
=1×0.25
=0.25

Answer 4

0.4*2.5*0.25
=1*0.25
=0.25

Answer 5

=2.5×0.4×0.25
=1×0.25
=0.25