Maths playground · 22/50 · Ages 8–10
The subtraction snack
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Rabbit starts with nine pretend berries and gives away four. Subtraction finds what remains. Cross out four berries in your imagination, then count the rest.
What you will discover
- Subtraction can model taking away.
- Check a subtraction by adding the removed amount back.
English vocabulary
- minus
- trừ
- left
- còn lại
Let’s play
9 berries − 4 berries = how many left?
See the explanation
9 − 4 = 5. Check: 5 + 4 = 9.
Practise touch typing
Place your hands on F and J and type this sentence using ten fingers.
Nine minus four is five.
Two little quiz questions
1. How can you check 9 − 4 = 5?
- 5 + 4 = 9
- 5 + 9 = 4
- 4 − 9 = 5
Answer and explanation
5 + 4 = 9. Adding back the four restores the starting amount.
2. Which operation finds what is left after taking away?
- Subtraction
- Multiplication only
- Sorting colors
Answer and explanation
Subtraction. Subtraction models the amount removed.