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Lots of things come in groups of 10, like the green bottles in the song!

Year 2 Calculation - Multiplication and Division By 10

Learn ×10 and ÷10 with tens. Make equal groups of ten, use bar models, and spot place value patterns to multiply and divide cleanly.

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Fascinating Fact:

Bar model whole and parts: Whole 30, parts are tens. 30 ÷ 10 = 3 parts. So 3 × 10 = 30.

In KS1 Maths, Year 2 pupils learn to multiply and divide by 10 using equal groups, tens frames, and bar models. Counting in tens connects facts like 3 × 10 = 30 and 30 ÷ 10 = 3.

Key Terms

Multiple of 10: A number made from tens only, like 10, 20, 30.
Bar model: A diagram showing a whole split into equal parts to help you see × and ÷ links.
Equal groups: The same number in each group; tens make quick ×10 and ÷10 facts.

Warm up with a quick challenge: try the Multiplication Game before you start the quiz.

Frequently Asked Questions (Click to see answers)

How do I multiply by 10 in Year 2?

Count in tens or make ten-sized groups. For example, 4 groups of 10 is 10, 20, 30, 40, so 4 × 10 = 40.

What is an easy way to divide by 10?

Share into groups of ten and count the groups. 30 ÷ 10 means “how many tens in 30?” There are 3 tens, so the answer is 3.

How does a bar model help with ×10 and ÷10?

A bar shows the whole split into equal tens. You can see how many tens make the whole (division) and how many tens you need to build it (multiplication).

Try These Related Quizzes

Question 1

What is 8 x 10?

108

Multiplying by 10 makes the number 10 times larger

Question 2

I know that 5 x 10 = 50. What else do I know?

5 ÷ 10 = 50

50 x 10 = 50

50 ÷ 10 = 5

50 ÷ 5 = 500

If 5 groups of 10 makes 50, then 50 divided into groups of 10 will give 5 in each group

Question 3

Is 83 a multiple of 10?

Yes, because it has 8 tens

Yes, because it's bigger than 10

No, multiples of ten end with a '0'

No, it's not big enough

Multiples of ten have a '0' as a last digit

Question 4

I put 60 children into groups of 10. How many groups do I make?

10, because 60 ÷ 10 = 10

16, because 60 x 10 = 16

60, because 60 ÷ 1 = 60

6, because 60 ÷ 10 = 6

We also know that 6 x 10 = 60 and 10 x 6 = 60

Question 5

Which is the odd fact out?

11 x 10 = 110

110 ÷ 11 = 10

11 x 11 = 111

110 ÷ 10 = 11

11 x 11 = 121 not 111!

Question 6

What are the next two numbers in this sequence: 30, 40, 50, ?

51, 61

55, 60

51, 52

60, 70

The numbers are going up in steps of 10

Question 7

How many tens are there in 170?

100

Counting up in tens until you reach 170 is useful here

Question 8

If one child has 10 toes, how may toes will 4 children have?

400

10 x 4 = 40

Question 9

What is 100 divided by 10?

100

1000

Dividing by ten means making groups of ten from the number until nothing is left

Question 10

Which is not true?

9 x 10 = 90

10 x 5 = 50

10 x 14 = 140

10 x 7 = 107

10 x 7 = 70

You can find more about this topic by visiting BBC Bitesize - Multiplying and dividing

Author: Angela Smith (Primary School Teacher & KS1 Quiz Writer)

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