# Mathematics / Year 5 / Number and Algebra / Number and place value

Curriculum content descriptions

Use estimation and rounding to check the reasonableness of answers to calculations (ACMNA099)

Elaborations
• recognising the usefulness of estimation to check calculations
• applying mental strategies to estimate the result of calculations, such as estimating the cost of a supermarket trolley load
General capabilities
• Numeracy Numeracy
ScOT terms

Rounding,  Accuracy and precision

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