Addition/Subtraction
12 + 5 = ?
17
10 x 2 = ?
20
8 x 2 - 3 = ?
13
102 = 10 x 10 = ?
100
3! = 3 x 2 x 1 = ?
6
23 - 5 = ?
18
147 / 7 = ?
21
15 / 5 x 5 - 10 + 2 = ?
7
142 = ?
196
5! = ?
120
123 + 7 = ?
130
90 x 12 = ?
980
25 x 3 / 5 + 18 / 3 + 20 = ?
272 = ?
729
7 + 3a = 22
a = ?
5
25 + 30 + 3 = ?
58
1500 / 6 = ?
250
400 / 10 x (3 x 5) - 14 = ?
586
sqrt (1369) = ?
37
17 x (3 + a) = 136
a = ?
5
49 - 10 - 7 = ?
32
1990 x 3 = ?
5970
256 / 4 x 2 - 6 x 8 + 26 = ?
106
sqrt (3481) = ?
59
162 / 2b = 9
b = ?
9