Mental and written addition and subtraction
Solve addition and subtraction problems using mental and written methods, including problems involving numbers, quantities, and measures
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Teaching Table · Plan outline
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“If your child is given a problem involving lengths, weights, or prices, can they decide whether to add or subtract and carry out the calculation correctly?”
Full guide and materials
- Activity. Solve addition and subtraction problems using mental and written methods, including problems involving numbers, quantities, and measures
What to notice. Solve a two-step problem: 'I had 35p, spent 12p, then found 5p. How much now?' • Choose an appropriate method (mental or written) for a given problem • Solve problems involving measures, e.g. 'a ribbon is 45cm, I cut off 18cm'
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1 approach
If your child is given a problem involving lengths, weights, or prices, can they decide whether to add or subtract and carry out the calculation correctly?
Solve addition and subtraction problems using mental and written methods, including problems involving numbers, quantities, and measures
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Check understanding
- Solve a two-step problem: 'I had 35p, spent 12p, then found 5p. How much now?'
- Choose an appropriate method (mental or written) for a given problem
- Solve problems involving measures, e.g. 'a ribbon is 45cm, I cut off 18cm'
“If your child is given a problem involving lengths, weights, or prices, can they decide whether to add or subtract and carry out the calculation correctly?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Addition & Subtraction
- Age range
- Ages 6–7
Standards