75x98十150的简便方法
1、75x98十150的简便方法：
=75 x 98 + 75 x 2
=75 x (98 + 2)
=75 x 100
=7500
2、75x98十150的简便方法:
=75 x (100 - 2) + 150
=7500 -150 + 150
=7500
1、75x98十150的简便方法：
=75 x 98 + 75 x 2
=75 x (98 + 2)
=75 x 100
=7500
2、75x98十150的简便方法:
=75 x (100 - 2) + 150
=7500 -150 + 150
=7500