第一知识网
www.001rz.com2960除37减37最后结果为43 7.24×2/5-2.24×60%。最后结果为三 括号3.8-
日期:2015-06-04 18:55:41 人气:81
2960÷37-37
=80-37
=43
7.24×2/5-2.24×60%
=2.896-1.344
=1.552
(8+4/9)÷4
=(8+4/9)×1/4
=2+1/9
=19/9
11/17×(5-15/4×4/11)
=11/17×(5-15/11)
=11/17×5-11/17×15/11
=55/17-15/17
=40