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Daily Maths Challenges

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How To Use Estimation To Check The Reasonableness Of An Answer

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How To Use Estimation To Check The Reasonableness Of An Answer

It is vital that pupils are able to use estimation to check their answers. This video explains how pupils can apply their knowledge of rounding numbers to identify what a reasonable answer might look like before carrying out a given calculation.

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Video Series:
Maths in Minutes
Video Playlist:
Addition and Subtraction: from informal to formal
Year Groups:

Year 3

Year 4

Topics:
Subtraction
Addition
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