🔢 Mathematics · Addition & Subtraction
Adding and subtracting (age 9+)
Solve addition and subtraction multi-step problems in contexts, deciding which operations and methods to use and why
Typical age: 9–10 years
“If your child is given a multi-step problem — like planning a budget where money is added and spent in several steps — can they decide which operations to use at each stage and explain their thinking?”
0 / 3 mastered
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Needs first
- Two-step addition and subtraction problemsREQUIRED
Two-step A+S problems are prerequisite to multi-step problems with larger numbers
- Mental addition and subtraction (age 9+)
Mental methods support choosing appropriate methods in multi-step problems
- Fluent addition and subtraction (age 9+)REQUIRED
Must have fluent written method before applying to multi-step contexts