Correction :

3 × 4 = 12	6 + 10 = 16
5 : 5 = 1	8 × 2 = 16
17 - 17 = 0	5 + 20 = 25
17 + 21 = 38	17 + 17 = 34
24 - 14 = 10	15 + 8 = 23
6 × 8 = 48	32 - 11 = 21
42 - 23 = 19	32 - 22 = 10
11 + 7 = 18	0 + 7 = 7
37 - 22 = 15	33 : 11 = 3
11 - 10 = 1	13 + 24 = 37