Problem / game
First name
The Crocodile Class and Mr. Steven
School
International School of Koje
Country
Age
11
The Crocodile Class (Year 6) found these solutions:
8, 7, 13, 10, 6, 12, 9
8 + 7 = 15 7 + 13 = 20 13 + 10 = 23 10 + 6 = 16 6 + 12 = 18 12 + 9 = 21
6, 9, 11, 12, 4, 14, 7
6 + 9 = 15 9 + 11 = 20 11 + 12 = 23 12 + 4 = 16 4 + 14 = 18 14 + 7 = 21