Year 4 - Maths
Round a 4-digit number to the nearest thousand, hundred and ten
Comparing, ordering and rounding 4-digit numbers
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
 In this unit pupils will compare and order 4-digit numbers. They will learn what rounding is and will round 4-digit numbers to the nearest thousand, hundred and ten.
Lesson Summary
You will learn to use place value to round a 4-digit number to the nearest thousand, the nearest hundred and the nearest ten.
Key Notes
- Identify the next and previous multiples of 10, 100 or 1,000 to the number on a number line.
- If the value of the digit you are looking at is 5 or more you round to the next multiple.
- If the value of the digit you are looking at is less than 5 you round to the previous multiple.
Vocabulary To Learn
- Rounding: Making a number simpler but keeping its value close to what it was.
Common Mistakes To Avoid
- Sometimes pupils forget to change all of the necessary digits when rounding. For example, when rounding 4,698 to the nearest hundred, they might say 4,798
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Identify the next and previous multiples of 10, 100 or 1,000 to the number on a number line. If the value of the digit you are looking at is 5 or more you round to the next multiple.
2. Use this key word in a maths sentence and explain it clearly. 'Rounding'
Making a number simpler but keeping its value close to what it was. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Sometimes pupils forget to change all of the necessary digits when rounding. For example, when rounding 4,698 to the nearest hundred, they might say 4,798. Correction: Make sure you spend time really focusing on the parts of the slide deck that show that when rounding to the nearest thousand, the answer must be a multiple of 1,000; the same principle applies when rounding to the nearest 100 or 10.
More Lessons In This Unit
Browse all guides in the Year 4 Maths guide library.