# Applying rounding for estimating (adding)

In this lesson, we will build on our knowledge of the 10 times table in order to estimate by rounding. We will do this to answer addition questions.

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.

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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 of these 3-digit numbers has 2 in the hundreds column?

1/5

Q2.500 - 200 =

2/5

Q3.456 - 111 =

3/5

Q4.835 - 324 =

4/5

Q5.Which of these is the odd one out?

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.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
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 of these 3-digit numbers has 2 in the hundreds column?

1/5

Q2.500 - 200 =

2/5

Q3.456 - 111 =

3/5

Q4.835 - 324 =

4/5

Q5.Which of these is the odd one out?

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.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Applying Rounding to Estimate (Adding) Quiz

Let's see what you have about rounding to estimate today

Q1.Which of numbers does not need to be rounded to the nearest 10?

1/5

Q2.What is 27 rounded to the nearest 10?

2/5

Q3.What is 523 rounded to the nearest 10?

3/5

Q4.Round to estimate this answer 102 + 45 =

4/5

Q5.What is 1999 rounded to the nearest 10?

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.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Applying Rounding to Estimate (Adding) Quiz

Let's see what you have about rounding to estimate today

Q1.Which of numbers does not need to be rounded to the nearest 10?

1/5

Q2.What is 27 rounded to the nearest 10?

2/5

Q3.What is 523 rounded to the nearest 10?

3/5

Q4.Round to estimate this answer 102 + 45 =

4/5

Q5.What is 1999 rounded to the nearest 10?

5/5

# Lesson summary: Applying rounding for estimating (adding)

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## Time to move!

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For 5 mins...

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