简便运算;52*295+56*6-56
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/04 17:06:04
简便运算;52*295+56*6-56
还有56*295+56*6-56
还有56*295+56*6-56
![简便运算;52*295+56*6-56](/uploads/image/z/6519253-13-3.jpg?t=%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%3B52%2A295%2B56%2A6-56)
52*295+56*6-56
=52*295+56*(6-1)
=52*295+56*5
=52*295+(52+4)*5
=52*295+52*5+4*5
=52*(295+5)+20
=52*300+20
=15600+20
=15620
56*295+56*6-56
=56*(295+6-1)
=56*300
=16800
=52*295+56*(6-1)
=52*295+56*5
=52*295+(52+4)*5
=52*295+52*5+4*5
=52*(295+5)+20
=52*300+20
=15600+20
=15620
56*295+56*6-56
=56*(295+6-1)
=56*300
=16800