[6] Circle the smaller number in each pair:
- 61 or 16
- 39 or 93
- 78 or 87
- 57 or 75
- 23 or 32
- 89 or 98
- 44 or 4
- 79 or 97
[7] Complete the number sequence:
- 12, 14, 16, 18, __, __
- 30, 25, 20, __, __, __
- 56, 57, 58, 59, 60 __ __ __
- 12, 13, 14, 15, __ __ __
- 72, 73, 74, __ __ __, 77
[8] Fill in the missing numbers:
- 23 __ 25 __ 27
- 38 __ 40 __ 42
- 55 __ 57 __ 59
[9] Which number comes after:
- 34 __
- 51 __
- 68 __
[10] Which number comes before:
- __ 22
- __ 49
- __ 74
[11] Solve the following: