# Round up to three significant figures

In this lesson, we will learn how to round numbers to 1, 2 or 3 significant figures

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

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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.Round 34.678 to two decimal places.

1/5

Q2.Round 0.99601 to two decimal places.

2/5

Q3.Round 12.004827 to two decimal places.

3/5

Q4.Which of the following cannot be rounded to 103.56?

4/5

Q5.A number has been rounded to 7.84. Which of the following could that number be?

5/5

#### 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.Round 34.678 to two decimal places.

1/5

Q2.Round 0.99601 to two decimal places.

2/5

Q3.Round 12.004827 to two decimal places.

3/5

Q4.Which of the following cannot be rounded to 103.56?

4/5

Q5.A number has been rounded to 7.84. Which of the following could that number be?

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.

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

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

# Round up to three significant figures

Round numbers above and below 1 to one, two or three significant figures

Q1.Round 128 to one significant figure.

1/5

Q2.Round 0.0030482 to two significant figures.

2/5

Q3.Round 476.8594 to three significant figures.

3/5

Q4.Which of the following cannot be rounded to 567 000?

4/5

Q5.A number has been rounded to 709 to three significant figures. Which is the only one of the following that could be that number?

5/5

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

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

# Round up to three significant figures

Round numbers above and below 1 to one, two or three significant figures

Q1.Round 128 to one significant figure.

1/5

Q2.Round 0.0030482 to two significant figures.

2/5

Q3.Round 476.8594 to three significant figures.

3/5

Q4.Which of the following cannot be rounded to 567 000?

4/5

Q5.A number has been rounded to 709 to three significant figures. Which is the only one of the following that could be that number?

5/5

# Lesson summary: Round up to three significant figures

## 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