Free interactive practice
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.
Year 6 · Maths
Solve Rounding Problems
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Focus on rounding decimals to estimate answers. Open support for “Estimate the Answer to an Addition by Rounding”, then explain the idea in your own words.
Year 6 learners practise rounding decimals to estimate answers.
The activities include Estimate the Answer to an Addition by Rounding, Multiply Decimals by Rounding to Whole Numbers, Round Decimals to Nearest Whole Numbers Before Dividing, and related practice. The checked support below includes video, practice, teaching-practice, teaching. 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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Activities covered
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- Estimate the Answer to an Addition by Rounding — support from Khan Academy
- Multiply Decimals by Rounding to Whole Numbers — support from Oak National Academy
- Round Decimals to Nearest Whole Numbers Before Dividing — support from Math with Mr. J
- Round Decimals to Nearest Whole Numbers Before Multiplying — support from Math with Mr. J
- Use Rounding to Estimate Addition of Decimals — support from Math with Mr. J
- Use Rounding to Estimate Subtraction of Decimals — support from YouTube — Khan Academy
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Watch it explained
watch a video explanation
Estimating when adding multi-digit numbers
Best for: a clear explanation before you practise
Multiply 1-digit numbers by decimal fractions using written methods
Best for: a clear explanation before you practise
Estimating Decimal Division
Best for: a clear explanation before you practise
Estimating Decimal Multiplication
Best for: a clear explanation before you practise
Estimating Decimal Sums
Best for: a clear explanation before you practise
Estimating decimal subtraction (thousandths) | Grade 5 (TX TEKS) | Khan Academy
Best for: a clear explanation before you practise
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Learn it properly
lessons and teaching pages
Rounding and solving problems with numbers up to 7 digits
Best for: worked examples and step-by-step teaching
Estimation: Make Reasonable Estimates (Multiply and Divide Decimals)
Best for: worked examples and step-by-step teaching
Addition and Subtraction: Estimating with Decimals (Ages 10–11)
Best for: worked examples and step-by-step teaching
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Practise it
questions and activities to try
Multiply 1-digit numbers by decimal fractions using written methods worksheet and quiz downloads
Best for: active questions with immediate feedback
Estimating with Dividing Decimals
Best for: checking understanding after learning
Estimating with Multiplying Decimals
Best for: checking understanding after learning
Estimating with Adding Decimals
Best for: checking understanding after learning
Estimate Sums and Differences of Decimals
Best for: checking understanding after learning
Estimating with subtracting decimals
Best for: checking understanding after learning
Decimal Number Subtraction with Estimation Differentiated Worksheets
Best for: checking understanding after learning
Estimating with Decimals Worksheets
Best for: checking understanding after learning
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Print and finish
worksheets away from the screen
Year 6 Calculation Estimation Maths Mastery Activities
Best for: pencil-and-paper practice away from the screen
Multiplying Decimals Questions (Primary Practice)
Best for: pencil-and-paper practice away from the screen
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