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Instructions

Let's practice our counting skills! In the first part, you will count on (forwards). In the second part, you will count back (backwards). Fill in the blank spaces with the correct numbers. Have fun!


Part 1: Counting On!

Fill in the missing numbers by counting on.

  1. 28, 29, ____, 31, ____

  2. 42, 44, ____, 48, ____

  3. 60, 65, ____, 75, ____

  4. 73, 83, ____, 103, ____

  5. 105, 106, 107, ____, ____

Part 2: Counting Back!

Fill in the missing numbers by counting back.

  1. 59, 58, ____, 56, ____

  2. 88, 86, ____, 82, ____

  3. 90, 85, ____, 75, ____

  4. 110, 100, ____, 80, ____

  5. 144, 143, 142, ____, ____

Part 3: What's the Rule?

Look at each number pattern. Are you counting on or counting back? By how much? Write down the rule.

Example: 10, 13, 16, 19 → Rule: Count on by 3

  1. 30, 35, 40, 45 → Rule: _________________________

  2. 77, 75, 73, 71 → Rule: _________________________

  3. 21, 31, 41, 51 → Rule: _________________________

  4. 99, 98, 97, 96 → Rule: _________________________





Answer Key

Part 1: Counting On!

  1. 28, 29, 30, 31, 32
  2. 42, 44, 46, 48, 50
  3. 60, 65, 70, 75, 80
  4. 73, 83, 93, 103, 113
  5. 105, 106, 107, 108, 109

Part 2: Counting Back!

  1. 59, 58, 57, 56, 55
  2. 88, 86, 84, 82, 80
  3. 90, 85, 80, 75, 70
  4. 110, 100, 90, 80, 70
  5. 144, 143, 142, 141, 140

Part 3: What's the Rule?

  1. Rule: Count on by 5
  2. Rule: Count back by 2
  3. Rule: Count on by 10
  4. Rule: Count back by 1
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