36×(34+35)简便
问题描述:
36×(34+35)简便
36×(34+35)
89×89÷89×89
全是简便运算
答
36×(34+35)
=36×(70-1)
=36×70-36
=2520-36
=2484
89×89÷89×89
=89×89
=7921