0.48×0.25=0.12×(4×0.25)=0.12×1=0.120.072*1.25=0.09×(0.8×1.25)=0.09×1=0.09
0.48×0.25=0.48/4=0.120.072*1.25=0.072/0.8=0.09
0.12*(4*0.25) =0.120.072*1.25=0.009*(8*1.25) =0.09
0.072×1.25 =(0.072÷8)×(1.25×8) =0.009×10 =0.09