25/5+2.5
2(3)(2)- 50
(2+4)-10
(-135-15)+10(2)
2(7+10-35)
94(2) - 100
5(6)+(-7+13)=
-10-100+1000
(100/5)-120
80/2(38-40)
890
-80
7.5
-36
88
-100
-4
-38
-130
36
