Correction :

3 + 5 = 8	6 + 17 = 23
8 + 21 = 29	19 + 14 = 33
1 + 10 = 11	24 + 11 = 35
22 + 16 = 38	0 + 14 = 14
6 + 5 = 11	7 + 24 = 31
23 - 17 = 6	29 - 21 = 8
19 + 24 = 43	19 + 24 = 43
13 + 15 = 28	16 - 8 = 8
17 + 3 = 20	9 - 0 = 9
5 - 5 = 0	39 - 21 = 18