Year 2 Multiplying by 2, doubling and halving (factors and products) worksheet

“Doubling 2-digit numbers” is free to print, with no account. It is the first sheet in the Year 2 maths unit “Multiplying by 2, doubling and halving (factors and products)”, for children aged 6 to 7, and takes about 20 minutes.

Print it on A4. The child's pages come first; the answers, and what each wrong answer tells you, are on the grown-up page that follows. Week 18 of the year, 5 sheets in the unit.

Free sample · answers on the last page

Doubling 2-digit numbers

Name: ____________ · Date: ____________
Year 2 · Maths · about 20 minutes
Answers are on the grown-up page

Today I can double 2-digit numbers and write each one as a 2 × sentence.

A Look back3 min

1.
Count on in 2s: 2, 4, 6, , 10
2.
3 + 3 + 3 =
3.
4 tens and 3 ones make

B Watch me, then you4 min

Priya has 13 pairs of socks. Each pair is 2 socks. How many socks is that altogether?

Watch me

Break 13 into 1 ten and 3 ones.

Double the ten to get 20. Double the 3 to get 6.

20 + 6 = 26, so 2 × 13 = 26.

Now you

1.
Double 14 is

C Your turn6 min

1.
Double 11 is
2.
Double 12 is
3.
Double 16 is
4.
15 × 2 =

Say it out loud: What stays the same in every row, and what changes? Why does the answer go up?

D Spot the mistake2 min

Kit says: “Double 14p is 24p, because double 10 is 20 and then I add the 4.”

1.
How much is double 14p really?

E Think deeper4 min

1.
Which numbers from 10 to 20 have a double bigger than 30? Write them all.

How did it feel?

I can do it Nearly Not yet

For the grown-up

Doubling 2-digit numbers · 2 minutes to read

Answers, and what a wrong one tells you

A

1. 8

2. 9

3. 43

B

1. 28 If your child writes 18, they added 4 to 14. Doubling means 14 + 14. Split 14 into 10 and 4 and double each part.

C

1. 22 If your child writes 12, they added 1 to 11. Doubling means two equal groups of 11, so 11 + 11.

2. 24

3. 32 If your child writes 26, they doubled the 10 to get 20 but added the 6 without doubling it. Double 6 as well, so 20 + 12 = 32.

4. 30

D

1. 28p If your child writes 24p, Kit's mistake has been copied. The 10 was doubled to 20, but the 4 was not doubled. Double 4 is 8, so 20 + 8 = 28p. Put two lots of 14p side by side and count the coins.

E

1. 16, 17, 18, 19, 20

Words to use

Say“Split the number into tens and ones, then double each part.”

Instead of“Tell them to count every single object in both piles one by one.”

After the sheet

Put 12 buttons in one pile, make a second pile the same, and count all 24. Then try 13 and 15.

Tick what your child got right in StudyDen. Anything missed comes back in a later Look back box, so there's no need to redo the sheet.

The rest of this unit

4 more sheets come with a StudyDen plan, in teaching order:

Doubling and halving pairs(with a plan)
Halving tens and ones(with a plan)
Halve to find the factor(with a plan)
Doubles and halves at work(with a plan)

Every Year 2 maths worksheet

The worksheets plan opens a printable sheet for every lesson in Years 1 to 6, each with its answers on a separate page for you. It costs £6.99 a month or £59 a year for the whole family, with no free trial.

The full StudyDen plan adds the lessons themselves, marked as your child works, with the worksheets included. It is 7 days free, then £29.99 a month.

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