(1/3+1/4)×33×44 简算
问题描述：
(1/3+1/4)×33×44 简算
快啊...
答
答：
(1/3+1/4)×33×44
=(1/3)×33×44+(1/4)×33×44
=11×44+11×33
=11×(44+33)
=11×77
=11×11×7
=121×7
=847