# Deriving Decimal Multiplication Facts

In this lesson, we will derive multiplication facts involving decimal numbers, exploring a range of language structures and models. By the end of this lesson we will be able to use a known fact (e.g. 2 x 6 = 12) to derive a decimal calculation (e.g. 0.2 x 6 =1.2).

#### 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.Sofia is 134.7cm tall. Her sister is 107.4cm tall. How much taller is Sofia than her sister?

1/6

Q2.How much taller is Sofia than her sister?

2/6

Q3.It is Grandad’s birthday soon and he wants to hire a sports car for his present. A sports car costs £49.50 initial payment then £29.50 per hour. Grandad is bought 4 hour's hire. How much did Grandad’s present cost?

3/6

Q4.How much did Grandad's present cost?

4/6

Q5.To visit his grandmother, Zaid takes a train 6.37 km and a car 5.45 km. How many kilometres is his journey in total?

5/6

Q6.The temperature in the classroom was 21.8 °C. Claire left the door open and the temperature dropped by 3.7 °C. What was the temperature now?

6/6

#### 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.Sofia is 134.7cm tall. Her sister is 107.4cm tall. How much taller is Sofia than her sister?

1/6

Q2.How much taller is Sofia than her sister?

2/6

Q3.It is Grandad’s birthday soon and he wants to hire a sports car for his present. A sports car costs £49.50 initial payment then £29.50 per hour. Grandad is bought 4 hour's hire. How much did Grandad’s present cost?

3/6

Q4.How much did Grandad's present cost?

4/6

Q5.To visit his grandmother, Zaid takes a train 6.37 km and a car 5.45 km. How many kilometres is his journey in total?

5/6

Q6.The temperature in the classroom was 21.8 °C. Claire left the door open and the temperature dropped by 3.7 °C. What was the temperature now?

6/6

# 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:

# Deriving decimal multiplication facts

Exit Quiz: Can you spot the pattern and complete this quiz mentally? That's the challenge!

Q1.9 x 7

1/8

Q2.7 x 9

2/8

Q3.7 x 0.9

3/8

Q4.9 x 0.7

4/8

Q5.7 x 0.09

5/8

Q6.9 x 0.07

6/8

Q7.7 x 0.009

7/8

Q8.9 x 0.007

8/8

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

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

# Deriving decimal multiplication facts

Exit Quiz: Can you spot the pattern and complete this quiz mentally? That's the challenge!

Q1.9 x 7

1/8

Q2.7 x 9

2/8

Q3.7 x 0.9

3/8

Q4.9 x 0.7

4/8

Q5.7 x 0.09

5/8

Q6.9 x 0.07

6/8

Q7.7 x 0.009

7/8

Q8.9 x 0.007

8/8

# Lesson summary: Deriving Decimal Multiplication Facts

## Time to move!

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

For 5 mins...

Move around:
Walk

On the spot:
Chair yoga