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Free · UKG–Class 2 · 2 worksheets · answer keys · practise online · set 61

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 61
Name:Date:Score:    / 12

Write the missing number.

  1. 34, 35, ___, 37, 38, 39
  2. 10, 11, 12, 13, ___, 15
  3. 67, 68, ___, 70, 71, 72
  4. 69, 70, 71, ___, 73, 74
  5. 38, 39, ___, 41, 42, 43
  6. 61, 62, ___, 64, 65, 66
  7. 33, 34, 35, ___, 37, 38
  8. 76, 77, 78, ___, 80, 81
  9. 80, ___, 82, 83, 84, 85
  10. 54, 55, 56, 57, ___, 59
  11. 14, 15, 16, ___, 18, 19
  12. 19, 20, ___, 22, 23, 24

Missing numbers (skip counting)

Class 1–2 · Worksheet 2 · set 61
Name:Date:Score:    / 12

Write the missing number.

  1. 5, 10, ___, 20, 25, 30
  2. 10, 15, 20, ___, 30, 35
  3. 10, ___, 30, 40, 50, 60
  4. 30, 40, 50, ___, 70, 80
  5. 70, 80, 90, 100, ___, 120
  6. 5, 10, 15, 20, ___, 30
  7. 30, 35, ___, 45, 50, 55
  8. 6, 8, 10, ___, 14, 16
  9. 14, 16, 18, 20, ___, 24
  10. 45, 50, 55, 60, ___, 70
  11. 40, 45, ___, 55, 60, 65
  12. 12, 14, 16, 18, ___, 22

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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.