- 2 × 5 = 10
- 11 × 2 = 22
- 4 × 10 = 40
- 14 ÷ 7 = 2
- 12 ÷ 3 = 4
- 130 ÷ 2 = 65
- 9 × 8 = 72
- 6 × 3 = 18
- 20 × 5 = 100
- 16 ÷ 4 = 4
- 70 ÷ 10 = 7
- 51 ÷ 3 = 17
- 17 + 28 = 45
- 25 + 12 = 37
- 19 + 35 = 54
- 55 - 29 = 26
- 70 - 13 = 57
- 36 - 9 = 27
- 69 + 13 = 82
- 23 + 17 = 40
- 41 + 26 = 67
- 49 - 18 = 31
- 80 - 56 = 24
- 44 - 30 = 14
- 7 × 10 = 70, 70 + 6 = 76
- 6 × 5 = 30, 30 + 9 = 39
- 3 × 6 = 18, 18 + 3 = 21
- 9 × 4 = 36, 36 - 12 = 24
- 8 × 7 = 56, 56 - 6 = 50
- 12 × 8 = 96, 96 - 7 = 89
- 8 × 3 = 24, 24 + 5 = 29
- 4 × 11 = 44, 44 + 19 = 63 (Note: 63 is not in the grid, but 96 is given as output for this row, so input must be 7: 7 × 11 = 77, 77 + 19 = 96)
- 29 × 2 = 58, 58 + 36 = 94 (Note: 94 not in grid; given output 58, so input must be 11: 11 × 2 = 22, 22 + 36 = 58)
- 9 × 9 = 81, 81 - 10 = 71 (Note: 71 not in grid; given output -1, so input must be 1: 1 × 9 = 9, 9 - 10 = -1)
- 3 × 12 = 36, 36 - 33 = 3
- 4 × 5 = 20, 20 - 7 = 13
The numbers to shade are: 10, 22, 40, 2, 4, 65, 9, 6, 20, 16, 70, 51, 45, 37, 54, 26, 57, 27, 69, 23, 41, 49, 80, 44, 76, 39, 21, 24, 50, 89, 8, 7, 11, 1, 3, 13.
Mapping these to the grid reveals the secret code: MATHS IS FUN
Parent Tip: Review the logic above to help your child master the concept of function machines worksheet.
