Correction :

24 - 24 = 0	30 - 22 = 8
21 - 14 = 7	16 - 3 = 13
1 + 3 = 4	33 : 11 = 3
7 × 5 = 35	36 - 23 = 13
25 - 24 = 1	2 + 23 = 25
3 + 14 = 17	9 - 8 = 1
9 - 9 = 0	22 + 10 = 32
16 + 17 = 33	80 : 8 = 10
22 + 12 = 34	15 - 10 = 5
23 + 18 = 41	25 - 11 = 14