# Adding and subtracting (age 10+)

Solve addition and subtraction multi-step problems in contexts, deciding which operations and methods to use and why, with numbers up to 10,000,000 and decimals

Builds on: Adding and subtracting (age 9+) (hard, https://ai.page/c/adding-and-subtracting-age-9/en.md), Reading and writing numbers to 10,000,000 (hard, https://ai.page/c/reading-and-writing-numbers-to-10-000-000/en.md), Addition and subtraction strategies (age 10+) (soft, https://ai.page/c/addition-and-subtraction-strategies-age-10/en.md)

Concept id: adding-and-subtracting-age-10. Subject: maths. Licence: CC BY-SA 4.0.

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