128乘于88=
问题描述：
128乘于88=
答
=(120+8)×88
=120×88+8×88
=120×(90-2)+8×(90-2)
=120×90-120×2+8×90-8×2
=10800-240+720-16
=10560+720-16
=11280-16
=11264