Fact Families to 20

Fact families bring together all the addition and subtraction stories up to 20 that the children have learned up to now, and give them lots of early practice at manipulating numbers and understanding that, for example, if 8 + 4 = 12, then 12 - 8 must be 4, and so on.

If children are struggling with fact families, provide plenty of small manipulatives and work with our Fact Family Mats from the resources below.

Getting Started

You might want to start by revising Fact Families to 10.

• Remind children that a fact family is all the addition and subtraction problems that 2 numbers and their sum can have.
• Most fact families have 2 addition problems and 2 subtraction problems (doubles being the exception - but we hope that they will work that out for themselves).
• It may help children to start by putting the numbers into order, smallest to greatest. Addition sums will always end with the greatest number. Subtraction sums will always start with the greatest number.

Our Fact Families to 20 Resources

These are in alphabetical rather than suggested-use order.

Bear Fact Families Blank

Use this "bear fact families" blank to work on any fact families with the kids. Write three numbers on the tulips and then ask the children to write the 4 number sentences that make up the fact family on the bear's tummy.

Bear Fact Families to 20

Practise fact families up to 20 with the help of these delightful bears! We've provided the numbers and a little prompting, and there's space on the bear's tummies to write out the number sentences for each fact family.

Fact Family Dinosaur Blank

Have a look at our Fact Family Dinosaurs to 10 to see how we draw spots on the neck, back and tail of the dinosaur for the kids to count and use in the fact family number sentences.

Fact Family Dinosaurs to 20

There are 2 fact family problems on each of these 5 worksheets, giving 10 lots of fact family practice (up to 20) in total. Count the spots on the dinosaur and then write the 4 fact family number sentences next to it.

Fact Family House Blank

Here's a fun printable to liven up your fact family work. Start by writing the 3 numbers you are working with on the roof, then write the number sentences below. If you laminate the sheet you will be able to use it repeatedly.

Fact Family Triangle Blank

Use this fact family triangle printout for fact family practice. We designed it to be printed onto card and laminated. Then use a white board marker to write a fact family onto the points of the triangle, and ask the children to fill in the number sentences.

Fact Family Worksheets Set 2

Here is a set of 4 worksheets designed to give children plenty of practice with fact families between 11 and 20. The more they practise, the more they understand!

Make a Fact Family Mat Blank

You can print this "make a fact family" mat onto white or coloured paper and laminate it for repeat use with dry wipe markers if you wish. Write 3 numbers on the children's T-shirts and then ask the children to write out the fact family in the spaces below.

Make a Fact Family Mats 11 to 20

There are 75 mats in this pack so you may want to print at a time, picking and choosing appropriate number bonds / fact families for the kids to work on. Use beads or other small objects to count out the facts using the circles on the mats if necessary.

More Numbers to 20

Ordinal Numbers to 20

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