Addition
15 + 15
What is 30
12 - 5
What is 7
77 x 2
What is 154
2a + 3b + 3b
What is 2a + 6b
2 + 5 + 7
What is 14
6 - 8 - 12
What is -14
10 x 10
What is 100
5 + 4x -10
What is -5 + 4x
87 + 95
What is 182
200 - 300
What is -100
928 x 34
What is 31,552
2x^3 + 10x + 2x - 1
What is 2x^3 + 12x -1
300 + 100 + 50
What is 450 ?
15 - 6 - 21
What is -12
111 x 2
What is 222
5c + 10c + 20c
What is 35c
7293 + 5341
What is 12634
8 minus 5
What is 3
1 x 7
What is 7
8a^2 + 1a^2 + 2x - 1x
What is 9a^2 + 1x