简便计算方法:88x320+32x120=32x(88x10+120)=32x(880+120)=32x1000=32000
你好。
88x320+32x120
=880x32+32x120
=32x(880+120)
=32x1000
=32000
88×320+32×120
=88×320+4×8×40×3
=320×(88+4×3)
=320×100
=32000
解:原式=88x10x32+32x120
=880x32+32x120
=32x(880+120)
=32x1000
=32000