# Finding 10, 100 or 1000 less than a given number

In this lesson, we will use our place value knowledge to find 10, 100 or 1000 less than a given number and consider how the digits change when we are required to regroup.

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.Mrs Crane has completed the following number line, is she correct?

1/5

Q2.Mrs Crane has completed the following number line, is she correct?

2/5

Q3.Complete this function machine by deciding if you need to add 10, 100 or 1000

3/5

Q4.Complete this function machine by deciding if you need to add 10, 100 or 1000

4/5

Q5.I think of a number. I add 10, then add 100. My answer is 7820. What was my number?

5/5

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.Mrs Crane has completed the following number line, is she correct?

1/5

Q2.Mrs Crane has completed the following number line, is she correct?

2/5

Q3.Complete this function machine by deciding if you need to add 10, 100 or 1000

3/5

Q4.Complete this function machine by deciding if you need to add 10, 100 or 1000

4/5

Q5.I think of a number. I add 10, then add 100. My answer is 7820. What was my number?

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.

Quiz:

# Finding 10, 100 or 1000 less than a given number

Using what we have learnt today, can you answer the following questions?

Q1.Mrs Crane has completed the following number line, is she correct?

1/5

Q2.Mrs Crane has completed the following number line, is she correct?

2/5

Q3.Complete this function machine by deciding if you need to subtract 10, 100 or 1000

3/5

Q4.Complete this function machine by deciding if you need to subtract 10, 100 or 1000

4/5

Q5.I think of a number. I subtract 100, then subtract 1000. My answer is 3450. What was my number?

5/5

Quiz:

# Finding 10, 100 or 1000 less than a given number

Using what we have learnt today, can you answer the following questions?

Q1.Mrs Crane has completed the following number line, is she correct?

1/5

Q2.Mrs Crane has completed the following number line, is she correct?

2/5

Q3.Complete this function machine by deciding if you need to subtract 10, 100 or 1000

3/5

Q4.Complete this function machine by deciding if you need to subtract 10, 100 or 1000

4/5

Q5.I think of a number. I subtract 100, then subtract 1000. My answer is 3450. What was my number?

5/5

# Lesson summary: Finding 10, 100 or 1000 less than a given number

## Time to move!

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

For 5 mins...

Move around:
Jog

On the spot:
Dance