682×6+318×6 399×315+315 能简便计算吗?怎么简便计算?682×6+318×6 399×315+315
问题描述:
682×6+318×6 399×315+315 能简便计算吗?怎么简便计算?
682×6+318×6 399×315+315
答
682×6+318×6
=(682+318)×6
=1000×6
=6000
399×315+315
=(399+1)×5
=400×5
=2000
答
682×6+318×6
=(682+318)x6
=1000x6
=6000
399x315+315
=(399+1)x315
=400x315
=12600
答
682×6+318×6
=(682+318)×6
=1000×6
=6000
399×315+315
=(399+1)×315
=400×315
=126000