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Year 5 · Maths
Round Up Down Decimals
When do you round a decimal up or down?
Find the digit you are rounding to, then look at the digit immediately to its right. If that next digit is 5, 6, 7, 8 or 9, increase the rounding digit by one. If it is 0, 1, 2, 3 or 4, keep the rounding digit unchanged and remove the digits after it.
Worked examples
- 3.46 to one decimal place is 3.5 because the next digit is 6, so 4 rounds up.
- 7.42 to one decimal place is 7.4 because the next digit is 2, so 4 stays the same.
- 12.5 to the nearest whole number is 13 because 5 rounds up.
Examples: 8.73 → 8.7 to 1 decimal place · 6.58 → 6.6 to 1 decimal place
Keep practising: Use the Year 5 Maths checklist
Year 5 learners practise rounding decimals to the nearest whole number.
The activities include Practise Rounding Decimals to One Decimal Place, Practise Rounding Decimals to One Decimal Place and the Nearest Whole Number, Round Decimals to One Decimal Place, and related practice. The checked support below includes video, teaching, worksheet, 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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Activities covered
- Practise Rounding Decimals to One Decimal Place
- Practise Rounding Decimals to One Decimal Place and the Nearest Whole Number
- Round Decimals to One Decimal Place
- Round Decimals to the Nearest Tenth or Whole Number
- Round Decimals to the Nearest Whole Number
- Round Decimals to the Nearest Whole Number or to One Decimal Place
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Round Numbers with 1 Decimal Place to the Nearest Whole Number | KS2 Maths Concept Video
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lessons and teaching pages
Rounding and estimating
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PlanIt Maths Year 5 Decimals and Percentages Lesson Pack 34: Round to 1 Decimal Place
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PlanIt Maths Year 5 Decimals and Percentages Lesson Pack 33: Round to the Nearest Whole Number
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Year 5 Maths Rounding Decimals to the Nearest Whole Number Mastery Worksheets
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Spring-Themed Rounding Decimals to the Nearest Tenth Worksheet
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