Mini Minds Hub · Free printable
Doubling to 100 Worksheet for Year 2 (Free Printable)
- ForYear 2 (Free Printable)
- StageKey Stage 1
- CostFree
- FormatPrintable PDF
Doubling to 100 is a free printable maths worksheet for Year 2 (ages 6 to 7), in Key Stage 1. It has 18 questions in three steps, then a challenge question. Children practise doubling, one of the key number facts they build on in the 2 times table. Page 2 gives the grown-up the answers, help for children who find it hard and a stretch idea.
It comes from the Mini Minds Hub, the free library of printables from Jaques of London, the British games and toy company that has been making games for families since 1795. Print both pages on A4, give page 1 to your child and keep page 2 for yourself. Black and white printing works well.
What is on the sheet
Page 1 is made up of numbered questions with space to write each answer. The questions are in three steps, followed by a challenge question at the end. Children double numbers and write what they find. They can use counters, drawings or mental methods. Doubling is the one idea running through the whole sheet, so children get plenty of practice with it.
Worked example: double 37
What is double 37?
This example shows two ways to work out a double. Children can use either one, or a method of their own.
Method 1: split and double- Split 37 into 30 and 7.
- Double the tens: 30 + 30 = 60.
- Double the ones: 7 + 7 = 14.
- Put the parts back together: 60 + 14 = 74.
- Make 3 tens and 7 ones. Make the same again, so there are two equal groups.
- Count all the tens: there are 6 tens. Count all the ones: there are 14 ones.
- Swap 10 ones for 1 ten. Now there are 7 tens and 4 ones.
- 7 tens and 4 ones is 74.
What this sheet builds
Doubling the ones
Children learn to double small numbers quickly and from memory. These facts are the building blocks for every bigger double.
Doubling the tens
Children see that doubling tens works just like doubling ones. Two tens and two tens is four tens, and the same idea carries on up to 100.
Putting the parts back together
Larger doubles need two steps: double the parts, then add them. This practises adding mentally and understanding tens and ones.
What is doubling?
Doubling means adding a number to itself, or making two equal groups of it. It is the same as multiplying by 2, so it is one of the first multiplication ideas children meet. In Year 2, children learn the 2, 5 and 10 multiplication tables, and doubling links directly to the 2 times table. Halving is the opposite. It splits an amount into two equal groups.
Doubling bigger numbers is easier when children split them into tens and ones first. They double each part, then put the parts back together. This builds understanding of place value as well as speed. Doubling a whole number always gives an even number, which is a useful pattern to spot and a quick way to check an answer. Secure doubling also helps with later work such as near doubles and times tables.
Skills and curriculum link
- Doubling
- Number facts
- Mental maths
- Place value
- Adding tens and ones
- Checking answers
Ideas to help with doubling
- Two equal groupsDoubling means two groups of the same size. Counters, buttons or drawings make this easy to see.
- Split the numberBreak a two digit number into tens and ones. Double each part, then add them back together.
- Look for patternsDoubling a whole number always gives an even number. If an answer is odd, it is worth checking again.
- Use halving to checkHalving is the opposite of doubling. Halve your answer and see if you get back to the number you started with.
Key words
- DoubleTo make two equal groups of a number, or add the number to itself.
- HalfOne of two equal parts. Halving is the opposite of doubling.
- Tens and onesThe two parts of a two digit number. The tens digit tells you how many tens, and the ones digit tells you how many ones.
- Even numberA number you can split into two equal groups with none left over.
- PartitionTo split a number into smaller parts, such as tens and ones.
- MultiplyTo make equal groups. Doubling is the same as multiplying by 2.
How to use it
- Print both pages on A4. Page 1 is for your child. Keep page 2, which has the answers and notes.
- Read the first question together. Ask your child to say in their own words what doubling means before they start.
- Let them choose how to work. They might use counters, draw two equal groups or double in their head.
- Check against page 2 together. Ask, "How did you work that out?" The thinking matters as much as the answer.
- Come back another day and try the questions that felt tricky again. Repeating a familiar sheet builds confidence.
Help, stretch and game ideas
If it feels too hard
Use two equal groups of counters. Put out the number, then make the same amount again. Count them all to find the double. Try the first few questions with counters, then see if your child can start to picture the groups in their head.
To stretch confident children
Try the challenge question at the end. Then write three similar questions of your own for a friend to answer. Can you explain how you worked out each double, and how halving could check the answer?
Make it a game
Race the clock. Agree a time limit, then see how many questions you can get right. Write down your score. Next time, try to beat your own score. Use counters or drawings for any question that feels tricky.
Mistakes to watch for
Watch forA child adds 2 to the number instead of doubling it, so double 37 becomes 39.
Try thisShow two equal groups with counters. Say, "Doubling means the same amount again, not just two more."
Watch forA child doubles the tens but forgets the ones, so double 37 becomes 60.
Try thisSplit the number on paper into 30 and 7. Write a double for each part, then add the two answers together.
Watch forA child writes 6 tens and 14 ones as 614.
Try thisUse tens and ones counters. Swap 10 ones for 1 ten and count again. Six tens and one more ten makes seven tens.
Talk about it
- What does double mean? Can you show me with counters?
- How is doubling different from adding 2?
- How can splitting a number into tens and ones make a double easier?
- Why do you think doubling a whole number always gives an even number?
- Can you use halving to check one of your answers?
- Which doubles do you know by heart, and which ones do you still work out?
Take it off the page
Counter doubles
Take a handful of counters and make two equal groups. Count them all and say the double. Try again with a different number of counters.
Pairs hunt
Look around the house for things that come in pairs, such as socks, shoes and gloves. Count how many pairs you find and double to find how many in total.
Doubling shop
Set up a pretend shop where every price doubles on Saturday. Use real or toy coins to work out the new prices. Take turns being the shopper and the shopkeeper.
Who it is for
Parents
Sit with your child for the first question, then let them lead. Short sessions work well. If they get stuck, ask them to make two equal groups with counters, buttons or coins. Praise the thinking as well as the answer.
Teachers
Use it as a starter, a plenary, an early finisher task, homework or a table activity. It needs no preparation beyond printing. Page 2 gives help and stretch ideas for mixed ability groups, and the answers make marking quick.
Home educators
Print it as part of a wider maths plan alongside books, outdoor play and everyday talk. You can print it again for brothers and sisters, or use it for revision a few weeks later. Ask your child to explain their methods aloud.
Where doubling fits
Before this sheet, children learn to count in twos, fives and tens, and to know simple number facts and doubles of small numbers. They also learn that a two digit number is made of tens and ones. Those ideas make doubling larger numbers much easier.
After this sheet, children can move on to halving, the 2, 5 and 10 times tables and near doubles. In later years, doubling and halving help with multiplying and dividing larger numbers and with working out amounts in their heads.
Questions parents and teachers ask
- What age is Doubling to 100 for?
It is written for Year 2 (ages 6 to 7), in Key Stage 1. Children who are a little younger and confident with number facts may enjoy it, and older children can use it as quick revision.
- What will children practise?
They practise doubling with short, focused questions. This builds number fact recall and mental maths. The sheet also supports place value, because larger doubles are easier when children think in tens and ones.
- Does the sheet include answers?
Yes. Page 2 is for the grown-up and has every answer, along with notes on how to use the sheet, help for children who find it hard and a stretch idea. Keep it back until your child has finished.
- What if it feels too hard?
Use two equal groups of counters. Put out the number, make the same amount again and count them all. Try a few questions at a time and come back to the rest another day.
- Can children do it in short sessions?
Yes. The questions are in three steps, so you can do one step at a time. Stop when your child is tired and return later. Short, relaxed practice usually works better than one long sitting.
- Is it suitable for teachers to use in class?
Yes. Teachers can use it as a starter, plenary, early finisher task, homework or table activity. It needs no preparation beyond printing, and page 2 has support and stretch ideas for mixed ability groups.
- Do I need to print in colour?
No. It prints well in black and white on plain A4 paper. Print both pages, give page 1 to your child and keep page 2 for yourself. It is free to print for home and classroom use.
Preview the full PDF
Made by Jaques of London, making games for families since 1795. A printable supports classroom learning and does not replace a teacher.