1.25×4×2.5×0.8 =(1.25×0.8)×(2.5×4) =10×10 =100
(1.25*8)*(2.5*4) =10.00*10.0 =100
=1.25✘0.8✘4✘2.5=1✘10=10
1.25x0.8x4x2.5
