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Free · UKG–Class 2 · 2 worksheets · answer keys · practise online · set 12

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 12
Name:Date:Score:    / 12

Write the missing number.

  1. 15, ___, 17, 18, 19, 20
  2. 64, ___, 66, 67, 68, 69
  3. 7, 8, ___, 10, 11, 12
  4. 38, 39, 40, 41, ___, 43
  5. 9, 10, 11, ___, 13, 14
  6. 25, 26, ___, 28, 29, 30
  7. 45, 46, 47, 48, ___, 50
  8. 50, ___, 52, 53, 54, 55
  9. 51, ___, 53, 54, 55, 56
  10. 17, 18, 19, ___, 21, 22
  11. 75, ___, 77, 78, 79, 80
  12. 89, 90, ___, 92, 93, 94

Missing numbers (skip counting)

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

Write the missing number.

  1. 12, 14, 16, ___, 20, 22
  2. 100, ___, 120, 130, 140, 150
  3. 14, 16, 18, 20, ___, 24
  4. 18, 20, 22, ___, 26, 28
  5. 2, ___, 6, 8, 10, 12
  6. 25, 30, 35, 40, ___, 50
  7. 6, 8, 10, ___, 14, 16
  8. 10, 12, ___, 16, 18, 20
  9. 40, 45, 50, 55, ___, 65
  10. 25, ___, 35, 40, 45, 50
  11. 16, 18, 20, 22, ___, 26
  12. 8, 10, 12, 14, ___, 18

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.