1.25×9.6=1.25×8×1.2=10×1.2=12祝你学习进步!不理解请追问,理解请及时采纳!(*^__^*)
1.25×9.6=1.25×(10-0.4)=12.5-0.5=12
1.25x8x1.2=10x1.2=12
1.25×9.6=1.25×0.8×1.2=1×1.2=1.2
1.25*(8+0.8*2)=1.25*8+1.25*0.8*2=10+1*2=12