5+5=?
answer=10
4x10=?
answer=40
6x3/2=?
answer=9
12x45/15=?
answer=36
(4+5)x3-2=?
answer=25
40+2/2=?
answer=41
48-10+3x4=?
answer=50
(5-10)x4=?
answer=-20