一道很难的数学题37x560+370x44一定要巧算,37x560+370x44=37x560+10x37x44 做下去
2019-04-13
一道很难的数学题
37x560+370x44一定要巧算,
37x560+370x44
=37x560+10x37x44 做下去
优质解答
37*560+370*44
=37*56*10+37*44*10
=37*10*(56+44)
=370*100
=37000
37*560+370*44
=37*56*10+37*44*10
=37*10*(56+44)
=370*100
=37000