# Number talks

In this lesson, we will use the axioms to find efficient methods to solve multiplication calculations by using distributive, associative and commutative properties.

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 the calculations below is equivalent to 8 x (9 + 10) ?

1/5

Q2.Which of the calculations below is equivalent to 9 x 8 + 9 x 10 ?

2/5

Q3.Which of the calculations below is equivalent to (8 + 9) x 10 ?

3/5

Q4.3 x ( 11 + 4) = 3 x 11 + 3 x 4 shows what property?

4/5

Q5.3 x ( 11 + 4) = (11 + 4) x 3 shows what property?

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.Which of the calculations below is equivalent to 8 x (9 + 10) ?

1/5

Q2.Which of the calculations below is equivalent to 9 x 8 + 9 x 10 ?

2/5

Q3.Which of the calculations below is equivalent to (8 + 9) x 10 ?

3/5

Q4.3 x ( 11 + 4) = 3 x 11 + 3 x 4 shows what property?

4/5

Q5.3 x ( 11 + 4) = (11 + 4) x 3 shows what property?

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:

# Number talks

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.This model represents a way to calculate 28×5. What has the model changed the calculation to?

1/4

Q2.This model represents a way to calculate 28×5. What has the model changed the calculation to?

2/4

Q3.a x b = b x a

3/4

Q4.a x (b + c) = a x b + a x c

4/4

Quiz:

# Number talks

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.This model represents a way to calculate 28×5. What has the model changed the calculation to?

1/4

Q2.This model represents a way to calculate 28×5. What has the model changed the calculation to?

2/4

Q3.a x b = b x a

3/4

Q4.a x (b + c) = a x b + a x c

4/4

# Lesson summary: Number talks

## Time to move!

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

For 5 mins...

Move around:
Walk

On the spot:
Dance