Addition and subtraction strategies
Mathematics · Addition & Subtraction · procedural
Use counting on and counting back as strategies for addition and subtraction
What mastery looks like
- Add 8 + 3 by starting at 8 and counting on 3 (9, 10, 11)
- Subtract 12 − 3 by counting back 3 from 12 (11, 10, 9)
- Explain that counting on is a way to add
Check your understanding
If Addition and subtraction strategies needs to work out '8 + 5', can they start from 8 and count up five more — rather than starting from 1 every time?
Prerequisites
Required first
Unlocks (0 directly)
None.