Question

1.25x4.8x2.5脱式计算

Answer 1

=1.25*8*0.6*2.5
=10*0.6*2.5
=6*2.5
=15

Answer 2

＝（1.25×0.8）×（4×2.5）
＝1×10
＝10

Answer 3

1.25x(4+0.8)x2.5
1+10
11

Answer 4

1.25×0.8+4×2.5
=1+10
=11

Answer 5