Question

1.25*3.6=?的简便计算 五年级上册

Answer 1

1.25x3.6
=1.25x4x0.9
=5X0.9
=4.5

Answer 2

1.25*3.6
=1.25*4*9
=5*9
=45

Answer 3

1.25*3.6=1.25*4*0.6=5*0.9=4.5