Adding and subtracting (age 7+)
Add and subtract numbers with up to three digits using formal written methods of columnar addition and subtraction
Teaching approaches
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1 approach
Can your child set out a sum like '347 + 265' or '512 − 278' in columns and work through it step by step, carrying or borrowing where needed?
Add and subtract numbers with up to three digits using formal written methods of columnar addition and subtraction
Learning resources
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Explore the learning path
2 before · 5 after
Before
This concept
Check understanding
- Set out a columnar addition correctly with digits aligned by place value
- Carry out columnar subtraction with exchange (borrowing) when needed
- Check the answer using the inverse operation or estimation
“Can your child set out a sum like '347 + 265' or '512 − 278' in columns and work through it step by step, carrying or borrowing where needed?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Addition & Subtraction
- Age range
- Ages 7–8
Standards