Rounding to a required degree of accuracy

Pupils start this lesson by considering why estimates and rounding might be useful. They explore rounding 7-digit numbers to the nearest multiple of 100,000 with varying degrees of accuracy.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.300 tens is equal to 3 thousands

1/5

Q2.7 460 400 is one hundred thousand larger than 7 450 400

2/5

Q3.Any number with a 2 in the millions place and a 6 in the hundred thousands place will be greater than 2 580 900

3/5

Q4.Which expression is correct?

4/5

Q5.Which expression is incorrect?

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.300 tens is equal to 3 thousands

1/5

Q2.7 460 400 is one hundred thousand larger than 7 450 400

2/5

Q3.Any number with a 2 in the millions place and a 6 in the hundred thousands place will be greater than 2 580 900

3/5

Q4.Which expression is correct?

4/5

Q5.Which expression is incorrect?

5/5

Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

  • Click "Close Video"
  • Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Rounding to a required degree of accuracy

Good luck!

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.Round the number 8,478,365 to the nearest 100,000

1/5

Q2.Round the number 1,962,354 to the nearest 100,000.

2/5

Q3.Round the number 9,571,354 to the nearest 10,000.

3/5

Q4.Round the number 4,838,646 to the nearest 10,000.

4/5

Q5.Round the number 6,232,119 to the nearest 10,000.

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Rounding to a required degree of accuracy

Good luck!

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.Round the number 8,478,365 to the nearest 100,000

1/5

Q2.Round the number 1,962,354 to the nearest 100,000.

2/5

Q3.Round the number 9,571,354 to the nearest 10,000.

3/5

Q4.Round the number 4,838,646 to the nearest 10,000.

4/5

Q5.Round the number 6,232,119 to the nearest 10,000.

5/5

Lesson summary: Rounding to a required degree of accuracy

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