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Play Rounding Sprint

Practise rounding whole numbers to a chosen power of ten and revisit missed questions automatically. Saving is off unless you choose it.

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Year 3 · Maths

Estimate And Check Answers

8 checked activities 2 video matches

Start here

Focus on estimating and checking answers using inverse operations. Open support for “Check Subtractions by Using Addition”, then explain the idea in your own words.

Year 3 learners practise estimating and checking answers using inverse operations.

The activities include Check Subtractions by Using Addition, Estimate Addition Questions Using Rounding to Nearest Ten, Estimate Additions by Rounding to the Nearest 100, and related practice. The checked support below includes video, worksheet, teaching, teaching-practice. Open a resource in its provider's website and choose the format that best helps the learner explain the idea independently.

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Watch — a video explanation

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Practise — questions or activities to try

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1

Watch it explained

watch a video explanation

WatchOak National Academy

Check Answers Using the Inverse

Best for: a clear explanation before you practise

FreeVerified match
Open video

WatchYouTube — Math with Mr. J

Estimating Whole Number Sums and Differences

Best for: a clear explanation before you practise

FreeReviewed, not fully verified
Open video

2

Learn it properly

lessons and teaching pages

LearnOak National Academy

Check Answers Using the Inverse: Year 3 Unit

Best for: worked examples and step-by-step teaching

FreeVerified match
Open lesson

LearnBBC Bitesize

KS2 Rounding and Estimating

Best for: worked examples and step-by-step teaching

FreeVerified match
Open lesson

3

Practise it

questions and activities to try

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4

Print and finish

worksheets away from the screen

PrintOak National Academy

Check Answers Using the Inverse: Worksheet and Quizzes

Best for: pencil-and-paper practice away from the screen

FreeVerified match
Open worksheet