Adding and subtracting (age 8+)
Add and subtract numbers with up to four digits using formal written methods of columnar addition and subtraction
Teaching approaches
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1 approach
Can your child line up a sum like '3,842 + 1,765' or '4,301 − 2,658' in columns and work through it correctly — carrying and borrowing across multiple columns?
Add and subtract numbers with up to four digits using formal written methods of columnar addition and subtraction
Learning resources
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This concept
Check understanding
- Set out and solve a columnar addition with up to four-digit numbers
- Set out and solve a columnar subtraction with exchange across multiple columns
- Check the answer using estimation or inverse operations
“Can your child line up a sum like '3,842 + 1,765' or '4,301 − 2,658' in columns and work through it correctly — carrying and borrowing across multiple columns?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Addition & Subtraction
- Age range
- Ages 8–9
Standards