1
Circle all even numbers: 2, 1, 9, 4, 1 =
2
Circle all even numbers: 7, 6, 4, 9, 8 =
3
Circle all even numbers: 4, 10, 9, 3, 9 =
4
Circle all odd numbers: 6, 5, 7, 3, 5 =
6
Circle all even numbers: 6, 4, 6, 4, 5 =
8
Circle all odd numbers: 9, 4, 3, 5, 2 =
11
Circle all even numbers: 10, 6, 4, 1, 6 =
12
Circle all odd numbers: 5, 5, 8, 3, 10 =
13
Circle all even numbers: 2, 5, 8, 2, 7 =
14
Circle all odd numbers: 2, 6, 6, 7, 7 =
15
Circle all odd numbers: 4, 8, 6, 10, 9 =
16
Circle all odd numbers: 2, 8, 6, 5, 6 =
18
Circle all odd numbers: 8, 1, 2, 10, 6 =