Question

Evaluate 15 - 4 + (7 - 5)2

Answer 1

15

Answer 2

15
15-4+(7-5)x2
7-5=2
15-4+2X2
2x2=4
15-4+4
15-4=11
11+4= 15
15

Answer 3

oops, it actually looks like this http://prntscr.com/38qn5c

Answer 4

use wolframalpha.com/ to compute your things it always works for me.

Answer 5

:O thanks @grabill

Answer 6

your welcome :)