Addition and subtraction
15+9
24
2 + -3
-1
7 x (3+4)
49
4/8 =
1/2
90% of 0
0
22+34
56
-3 - 3
-6
12 / 2 x 3
18
6/8 =
3/4
50% of 4
2
25-15
10
8 - (-7)
15
18 - (2+1) + 4
19
14/21 =
2/3
10% of 60
6
49-27
22
-10 + -5
-15
12 + 4 x (11-6) =
32
2/10 =
1/5
60% of 30
18
168-24+6
150
-12 - (-20)
6
6 - (9-2) + 3 x 6 =
17
11/8 =
1 3/8
75% of 90
67.5