BrightPath
Choose a Subtraction Strategy
Name:
Date:
Today I am practising: selecting and justifying an efficient subtraction method
1
Solve 19 − 2. Choose count back, bridge ten, or count up and explain your choice.
2
Solve 16 − 14 with a different helpful strategy. Show its steps.
3
Solve 13 − 7 by stopping at ten. Explain your split of 7.
4
Try two strategies for 15 − 6. Which felt easier to track?
5
A learner counts back eleven times for 18 − 11. Suggest another correct method and demonstrate it.
6
Write a subtraction for which counting up is especially helpful. Explain why.
- Offer strategy names without prescribing one correct choice for every fact.
- Require a visible calculation before discussing efficiency.
- Compare tracking effort and clarity rather than timing the child.