Subtraction
Take away and find the difference, from crossing out dots to subtracting with borrowing.
What your child learns
- Take away by counting back
- Find the difference by counting up
- Subtract in columns, exchanging a ten when the top digit is smaller
Example
52 − 17: can't do 2 − 7, so exchange a ten: 12 − 7 = 5, 4 − 1 = 3 → 35.
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
Subtract the numbers
4 − 3 = ?Show the answer
Answer: 1
4 − 3 = 1
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Question 2 · Level 3
Subtract the numbers
30 − 8 = ?Show the answer
Answer: 22
30 − 8 = 22
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Question 3 · Level 5
A mountain is 7,463 m high. A plane flies 4,136 m lower than it. Then the plane climbs 500 m. How high is the plane now?
Show the answer
Answer: 3827
3,327 + 500 = 3,827 m.
Try it at home
Start with 10 crackers, eat 3 — how many are left? Then check by adding back.
Key takeaway
Check any subtraction by adding the answer to the number you took away.
Practise subtraction with Bloomie
Bloomie reads every question aloud, listens to spoken answers and adapts the difficulty one question at a time.