1.25×0.25x32(32=8x4)=(1.25x8)x(0.25x4)=10x1=10
=1.25x(8x4)x0.25=(1.25x8)x(0.25x4)=10x1=10
=1.25×0.25×（4メ8） =1.25×8+0.25×4=10×1=10
1.25×0.25×32=1.25×0.25×4×8=(1.25×8)×(0.25×4)=10×1=10
