Free · UKG–Class 2 · 2 worksheets · answer keys · practise online · set 21

Missing numbers worksheets — fill in the gaps

Free missing numbers worksheets for UKG, Class 1 and 2: counting by ones and skip counting by 2s, 5s and 10s — new numbers every set, with answers.

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Missing numbers (count by 1s) (UKG–Class 1)Missing numbers (skip counting) (Class 1–2)

Missing numbers (count by 1s)

UKG–Class 1 · Worksheet 1 · set 21
Name:Date:Score:    / 12

Write the missing number.

  1. 3, 4, 5, 6, ___, 8
  2. 11, ___, 13, 14, 15, 16
  3. 43, 44, 45, ___, 47, 48
  4. 6, 7, ___, 9, 10, 11
  5. 70, 71, 72, 73, ___, 75
  6. 8, 9, 10, 11, ___, 13
  7. 50, 51, 52, ___, 54, 55
  8. 80, 81, ___, 83, 84, 85
  9. 44, 45, ___, 47, 48, 49
  10. 8, 9, ___, 11, 12, 13
  11. 69, ___, 71, 72, 73, 74
  12. 1, 2, 3, 4, ___, 6

Missing numbers (skip counting)

Class 1–2 · Worksheet 2 · set 21
Name:Date:Score:    / 12

Write the missing number.

  1. 35, 40, 45, 50, ___, 60
  2. 5, 10, 15, ___, 25, 30
  3. 15, 20, 25, ___, 35, 40
  4. 8, 10, 12, 14, ___, 18
  5. 18, 20, 22, 24, ___, 28
  6. 10, 12, 14, ___, 18, 20
  7. 20, 30, 40, ___, 60, 70
  8. 6, 8, ___, 12, 14, 16
  9. 70, ___, 90, 100, 110, 120
  10. 60, 70, 80, ___, 100, 110
  11. 20, 22, ___, 26, 28, 30
  12. 50, 55, 60, ___, 70, 75

More worksheets

Questions

How do I help my child find missing numbers?

Say the sequence aloud together and pause at the gap — the child usually hears what comes next.

Are these worksheets free?

Yes — print them or save as PDF free. Every worksheet has an answer key.

How do I get different questions?

Press “🔄 New set” — the questions change (maths numbers are new every time; English sentences are shuffled).

How do I print only one worksheet?

Press “🖨️ Print” on that worksheet. Tick “with answer key” if you want the answers on a second page.

Can my child do this worksheet online, like a quiz?

Yes — press “▶️ Practise online” on any worksheet. The questions come one at a time with instant marking, a score at the end and a review of mistakes. No sign-in is needed.