Adding
What is 10+20?
30
50-9
41
12+1-8+2
7
What is 162+312
473
10
12-9+61-2
62
What is 56+12
68
12-12
0
12-9+90
93
12+12+12+12
48
50-25
25
71+9020-29
9,062
12+9+8+0
29
89-21
68
BONUS: 2,489,014,636,462,843-58,022,930+2
2,489,014,578,439,915