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Free · UKG–Class 2 · 2 worksheets · answer keys · practise online · set 77

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 77
Name:Date:Score:    / 12

Write the missing number.

  1. 17, 18, 19, ___, 21, 22
  2. 86, 87, ___, 89, 90, 91
  3. 38, ___, 40, 41, 42, 43
  4. 57, 58, 59, ___, 61, 62
  5. 35, 36, 37, ___, 39, 40
  6. 25, ___, 27, 28, 29, 30
  7. 74, ___, 76, 77, 78, 79
  8. 41, 42, ___, 44, 45, 46
  9. 34, 35, 36, ___, 38, 39
  10. 65, ___, 67, 68, 69, 70
  11. 81, 82, ___, 84, 85, 86
  12. 84, ___, 86, 87, 88, 89

Missing numbers (skip counting)

Class 1–2 · Worksheet 2 · set 77
Name:Date:Score:    / 12

Write the missing number.

  1. 20, ___, 40, 50, 60, 70
  2. 16, 18, 20, 22, ___, 26
  3. 10, 12, 14, 16, ___, 20
  4. 4, 6, ___, 10, 12, 14
  5. 20, 30, 40, ___, 60, 70
  6. 10, 15, 20, ___, 30, 35
  7. 50, 55, 60, 65, ___, 75
  8. 6, 8, 10, 12, ___, 16
  9. 50, 55, ___, 65, 70, 75
  10. 90, 100, 110, 120, ___, 140
  11. 20, 22, ___, 26, 28, 30
  12. 6, ___, 10, 12, 14, 16

More worksheets

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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.