7*(9+12/3)
=7*13
=91
猜你喜欢
- 1It's very friendly__ him to help me when I 'm in trouble.A for B to C of D with
- 2E为梯形ABCD一腰AB上一点,AD//BC且AD<BC,AE:EB=2:1,EF//BC交CD于点F,AD=5,EF=7,求BC的长
- 3高锰酸钾制取氧气的化学方程式是什么?
- 4You have nothing to ______ by refusing to listen to our advice.
- 5功率/380v* 1.73=电流公式
- 6学校六年级有男生120人,占六年级总人数的5分之3.六年级男生比女生多多少人?
- 7高中一分钟英语演讲稿
- 8She is very tired because of_(work)the whole night.
- 9三个5,一个1怎么算出来等于24不重复
- 10一个两位数,将十位数字与个位数字对调,所得两位数与原来两位数之差不大于72 求这两位数?