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Free · UKG–Class 2 · 2 worksheets · answer keys · practise online · set 55

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 55
Name:Date:Score:    / 12

Write the missing number.

  1. 16, 17, 18, 19, ___, 21
  2. 73, 74, 75, ___, 77, 78
  3. 66, 67, ___, 69, 70, 71
  4. 50, 51, ___, 53, 54, 55
  5. 90, ___, 92, 93, 94, 95
  6. 46, 47, 48, 49, ___, 51
  7. 68, 69, 70, ___, 72, 73
  8. 55, 56, 57, 58, ___, 60
  9. 60, 61, 62, ___, 64, 65
  10. 20, ___, 22, 23, 24, 25
  11. 92, 93, ___, 95, 96, 97
  12. 2, 3, 4, 5, ___, 7

Missing numbers (skip counting)

Class 1–2 · Worksheet 2 · set 55
Name:Date:Score:    / 12

Write the missing number.

  1. 100, 110, ___, 130, 140, 150
  2. 20, 30, ___, 50, 60, 70
  3. 60, 70, 80, ___, 100, 110
  4. 20, 25, 30, 35, ___, 45
  5. 100, ___, 120, 130, 140, 150
  6. 10, 20, 30, ___, 50, 60
  7. 50, ___, 70, 80, 90, 100
  8. 10, 20, 30, 40, ___, 60
  9. 6, 8, 10, ___, 14, 16
  10. 20, 25, ___, 35, 40, 45
  11. 30, 35, 40, ___, 50, 55
  12. 18, 20, 22, ___, 26, 28

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.