Question

1.6乘7.5乘1.25的简便方法怎么算？

Answer 1

（1.6x7.5）x1.25

(0.2×8)×7.5×1.25=(0.2×7.5)×(8×1.25)=1.5×10=15

1.6×7.5×1.25 =0.2×8×7.5×1.25 =0.2×7.5×(8×1.25) =1.5×10 =15

Answer 2

1.6*7.5*1.25
=0.2*8*7.5*1.25
=0.2*7.5*8*1.25
=1.5*10
=15