The missing number is 10.
Explanation:45 : 3 = 1515 - 3 = 1212 + 13 = 2525 : 13 = 22 + 13 = 1515 - 7 = 8
The missing number is 10.
Explanation:
45 : 3 = 15
15 - 3 = 12
12 + 13 = 25
25 : 13 = 2
2 + 13 = 15
15 - 7 = 8