简便运算 99*5+5-88*5=
问题描述:
简便运算 99*5+5-88*5=
答
99*5+5-88*5
=5*(99+1-88)
=5*12
=60
简便运算 99*5+5-88*5=
99*5+5-88*5
=5*(99+1-88)
=5*12
=60