Correction :

11 - 10 = 1	44 - 23 = 21
29 - 5 = 24	10 - 2 = 8
32 - 9 = 23	17 + 24 = 41
15 + 23 = 38	22 - 19 = 3
24 + 21 = 45	21 + 6 = 27
5 - 4 = 1	41 - 18 = 23
7 + 16 = 23	24 - 16 = 8
36 - 21 = 15	12 + 21 = 33
5 × 5 = 25	25 - 22 = 3
66 : 11 = 6	23 - 15 = 8