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Free · UKG–Class 2 · 2 worksheets · answer keys · practise online · set 15

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 15
Name:Date:Score:    / 12

Write the missing number.

  1. 18, 19, 20, 21, ___, 23
  2. 85, ___, 87, 88, 89, 90
  3. 72, 73, ___, 75, 76, 77
  4. 82, ___, 84, 85, 86, 87
  5. 9, ___, 11, 12, 13, 14
  6. 64, 65, 66, 67, ___, 69
  7. 30, 31, 32, 33, ___, 35
  8. 90, 91, ___, 93, 94, 95
  9. 87, 88, 89, 90, ___, 92
  10. 6, 7, ___, 9, 10, 11
  11. 77, 78, 79, ___, 81, 82
  12. 89, 90, 91, ___, 93, 94

Missing numbers (skip counting)

Class 1–2 · Worksheet 2 · set 15
Name:Date:Score:    / 12

Write the missing number.

  1. 60, 70, 80, 90, ___, 110
  2. 10, 12, 14, 16, ___, 20
  3. 35, 40, ___, 50, 55, 60
  4. 60, 70, ___, 90, 100, 110
  5. 40, 50, 60, ___, 80, 90
  6. 16, ___, 20, 22, 24, 26
  7. 18, 20, ___, 24, 26, 28
  8. 8, ___, 12, 14, 16, 18
  9. 70, ___, 90, 100, 110, 120
  10. 25, 30, 35, 40, ___, 50
  11. 2, ___, 6, 8, 10, 12
  12. 50, 55, ___, 65, 70, 75

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.