Correction :

9 + 10 = 19	19 + 5 = 24
26 - 11 = 15	18 + 6 = 24
44 - 23 = 21	3 + 8 = 11
21 - 17 = 4	10 + 22 = 32
6 × 1 = 6	14 - 12 = 2
36 - 19 = 17	19 - 16 = 3
34 - 12 = 22	8 - 6 = 2
1 × 2 = 2	9 + 14 = 23
9 : 3 = 3	3 × 2 = 6
48 - 24 = 24	21 + 19 = 40