Rounding to estimate

In this lesson, we will apply our understanding of rounding to the nearest multiples of 10 000 and 1000 to estimate the answer to addition equations.

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!

Q1.Which equation demonstrates how the number 346 000 can be partitioned?

1/5

Q2.Use partitioning to solve the equation: 723 000 + 15 000 =

2/5

Q3.Use partitioning to solve the equation: 456 000 - 132 000 =

3/5

Q4.Use partitioning to solve the equation: 158 000 + 26 000 =

4/5

Q5.Use partitioning to solve the equation: 738 000 - 156 000 =

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:

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!

Q1.Which equation demonstrates how the number 346 000 can be partitioned?

1/5

Q2.Use partitioning to solve the equation: 723 000 + 15 000 =

2/5

Q3.Use partitioning to solve the equation: 456 000 - 132 000 =

3/5

Q4.Use partitioning to solve the equation: 158 000 + 26 000 =

4/5

Q5.Use partitioning to solve the equation: 738 000 - 156 000 =

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 estimate

Quiz to be completed following lesson on: 'Rounding to estimate'.

Q1.What does 'rounding to estimate' mean?

1/5

Q2.Round '456 244' to the nearest multiple of 10 000.

2/5

Q3.Using rounding to the nearest multiple of 10 000 to estimate the answer to: 341 782 + 456 913 =

3/5

Q4.Use rounding to the nearest multiple of 1000 to estimate the answer to: 187 221 + 243 891 =

4/5

Q5.What is one of the problems associated with rounding to estimate?

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 estimate

Quiz to be completed following lesson on: 'Rounding to estimate'.

Q1.What does 'rounding to estimate' mean?

1/5

Q2.Round '456 244' to the nearest multiple of 10 000.

2/5

Q3.Using rounding to the nearest multiple of 10 000 to estimate the answer to: 341 782 + 456 913 =

3/5

Q4.Use rounding to the nearest multiple of 1000 to estimate the answer to: 187 221 + 243 891 =

4/5

Q5.What is one of the problems associated with rounding to estimate?

5/5

Lesson summary: Rounding to estimate

It looks like you have not completed one of the quizzes.

To share your results with your teacher please complete one of the quizzes.

Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Climb stairs

On the spot:
Chair yoga