Round a 4-digit number to the nearest hundred and ten
Lesson details
Learning outcome
I can use place value to round a 4-digit number to the nearest hundred and the nearest ten.
Key learning points
- Identify the next and previous multiples of 10 or 100 to the number on a number line.
- Rounding to the nearest 100, look at the tens value to decide whether to round to the previous or next multiple of 100
- Rounding to the nearest 10, look at the ones value to decide whether to round to the previous or next multiple of 10
- If the value of the digit you are looking at is 5 or more you round to the next multiple.
Keywords
Rounding - Making a number simpler but keeping its value close to what it was.
Multiple - The result of multiplying a number by an integer. For example, multiples of 100 are 100, 200, 300, 400 etc.
Common misconception
A tricky digit for many pupils to consider is 0 because the rounded number is often the same as the original number. Pupils are often tempted to round to the multiple before the one they should.
Spend some time establishing with pupils that occasionally when zeroes are involved, the number does not actually change when it is rounded. Number lines are a great visual support when rounding, including in this aspect.
Teacher tip
The ideas in this lesson are best replicated practically where possible: displaying the multiples on pieces of paper and getting pupils to hold their 4-digit numbers and stand in the correct positions will be a much more powerful and memorable learning experience.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.What is the next number in the sequence? 0 100 200 300
Q2.Which of these numbers is a multiple of 100?
Q3.Which of these is the multiple of 10 that comes before 327?
Q4.What is the next multiple of 10 after 589?
Q5.Match each 3-digit number to the nearest multiple of 10
150
160
140
Q6.When rounding numbers, what is the rule for the digit 5?
Assessment exit quiz
6 Questions
Q1.Round 4,825 to the nearest multiple of 100
Q2.Select all of the numbers that, when rounded to the nearest multiple of 100, round to 5,200
Q3.Round 3,515 to the nearest multiple of 10
Q4.Round 3,510 to the nearest multiple of 10
Q5.Round 5,555 to the nearest multiple of 10
Q6.Round 4,820 to the nearest multiple of 10
To help you plan your 4 maths lesson on: Round a 4-digit number to the nearest hundred and ten, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 4 maths lesson on: Round a 4-digit number to the nearest hundred and ten, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 2 maths lessons from the Comparing, ordering and rounding 4-digit numbers unit, dive into the full primary maths curriculum, or learn more about lesson planning.