作业帮问几道简便运算1.981+981x50+981x492.22x35+33x7+993.100-98+96-94+92-90+.+8-6+4-2
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/01 23:35:59
问几道简便运算1.981+981x50+981x492.22x35+33x7+993.100-98+96-94+92-90+.+8-6+4-2
问几道简便运算
1.981+981x50+981x49
2.22x35+33x7+99
3.100-98+96-94+92-90+.+8-6+4-2
问几道简便运算1.981+981x50+981x492.22x35+33x7+993.100-98+96-94+92-90+.+8-6+4-2
1.981+981x50+981x49
=981*1+981*50+981*49
=981*(1+50+49)
=981*100
=98100
1 =981乘以50加49加1的和等于98100