Missing Numbers
Find the hidden number in a number line, sequence or simple sum.
What your child learns
- Count forwards and backwards to fill gaps
- Use 'think addition' to find missing parts
- Check by putting the number back in
Example
5 + ? = 9 → count on from 5 to 9: 4 jumps, so the missing number is 4.
Practice questions
A taste of the questions in BloomTracks – the app makes fresh ones every time and adjusts the level as your child answers.
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Question 1 · Level 1
Which number is missing?
2?456- 1
- 4
- 2
- 3
Show the answer
Answer: 3
2, 3, 4, 5, 6 – the missing number is 3.
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Question 2 · Level 3
Which number is missing?
41424344?- 44
- 48
- 46
- 45
Show the answer
Answer: 45
41, 42, 43, 44, 45 – the missing number is 45.
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Question 3 · Level 5
Which number is missing?
500600700?900- 800
- 700
- 900
- 801
Show the answer
Answer: 800
500, 600, 700, 800, 900 – the missing number is 800.
Try it at home
Cover one number on a calendar row and ask what's hiding.
Key takeaway
A missing number is just a question: 'what makes this true?'
Practise missing numbers with Bloomie
Bloomie reads every question aloud, listens to spoken answers and adapts the difficulty one question at a time.