Multiplication and Division

Multiplication and Division

Interactive lesson

Let's see how much you've remembered of the last few weeks...

• Do you remember what a factor is?

• Can you work out the LCM of two numbers?

• x 0.1 is the same as what other operation?

During today's lesson...

During this recap lesson some reminders will be shown and then you'll have a chance to complete some questions against your classmates.

Are you ready for your first question?

Multiple Choice

What is a multiple?

• A number that goes into another without leaving a remainder

• A number that is in a given times table

• A number you will times another number by

Factors

A factor is a number that goes into another number with leaving a remainder.

We list the factors in pairs (you can use 'factor bugs' to help).

Remember to list them in order so you don't forget any!

Are you ready for some more questions about factors?

(Three questions coming up)

Multiple Select

Which of these numbers are factors of 10?

(Tick all the numbers you think are)

• 1

• 2

• 3

• 4

• 5

Open Ended

List all the factors of 28

Multiple Choice

Which of the following is a multiple of 13?

• 36

• 37

• 38

• 39

• 40

HCF and LCM

• List all factors or multiples

• Identify the HIGHEST factor from both lists OR

• Identify the LOWEST multiple from both lists

Some more questions coming your way

(one HCF and one LCM)

Multiple Choice

What is the HCF of 12 and 18?

• 2

• 4

• 6

• 9

Multiple Choice

What is the LCM of 10 and 15?

• 10

• 15

• 20

• 25

• 30

Multiplying and Dividing by powers of 10

• Remember that the number of zeros is how many columns you move the digits

• x 0.1 is the same as ÷ 10

• x 0.01 is the same as ÷ 100

Three more questions about this

Are you ready?

Multiple Choice

14 x 10

• 14.0

• 140

• 1.4

• 0.14

Multiple Choice

51 ÷ 10

• 5.1

• 0.51

• 510

• 51.0

Multiple Choice

67 x 0.1

• 670

• 67.0

• 6.7

• 0.67

Let's mix up everything!

Be prepared for questions about everything already talked about, all mixed in together

Multiple Choice

True or False?

A FACTOR is greater than the number you are factorising

• True

• False

Multiple Choice

2.7 x 10

• 270
• 0.27
• 27
• 0.027

Multiple Choice

Find the HCF of 30 and 36

• 2
• 3
• 4
• 6

Multiple Choice

0.4 ÷ 10

• 4.0
• 40
• 0.40
• 0.040

Multiple Choice

The least common multiple of 12, 30, and 40 is…

• 40

• 60

• 120

• 160

Multiple Choice

41 ÷ 100

• 4,100
• 41
• 0.41
• 0.041

Multiple Choice

2.3 × 1,000 = 

• 23
• 2,300
• 230
• 23,000

Multiple Choice

What is the LCM of 4 and 12?

• 4

• 8

• 12

• 16

Multiple Choice

6.3 ÷ 100 =

• 6.3
• 63
• 0.63
• 0.063

Multiple Choice

Find ALL FACTORS of 24

• 1, 2, 12, 24

• 1, 2, 8, 24

• 1, 2, 3, 4, 5, 6, 8, 12, 24

• 1, 2, 3, 4, 6, 8, 12, 24

Multiple Choice

1,600 ÷ 100 = 

• 160
• 16
• 1,600

Multiple Choice

45 x 100 = 

• 450
• 4,500
• 45,000

Multiple Choice

Find the HCF for 18, 36, and 81

• 3

• 2

• 6

• 9

Multiple Choice

10³

• 10
• 100
• 1000
• 30

Multiple Choice

Find ALL FACTORS of 24

• 1, 2, 12, 24

• 1, 2, 8, 24

• 1, 2, 3, 4, 5, 6, 8, 12, 24

• 1, 2, 3, 4, 6, 8, 12, 24

Well done!

You have now finished with your Maths for the day!

You can press 'mark as done' on the Google Classroom assignment.