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Check out this blog for helpful tips about how to use a number line for addition, subtraction, multiplication and even division!
Did you know that number lines are one of the most valuable tools to help children with their maths skills in key stage 1? Although they are a basic concept, number lines can help with addition, subtraction, multiplication and division. Read on for more information about number lines and number line activities that you can use with your child at home.
A number line is a visual representation of numbers. A number line will often start from zero. However, it can start from any number! It also does not have to include every number. It may have visible increments or it may be completely blank. A good example of a number line in a real life context is a thermometer, a ruler or a measuring jug.
Children usually begin to use number lines in reception. They are helpful for helping children to count by moving along the number line and pointing to each number in turn. It is important to note that when we use a number line, we count the jumps – whether it is counting in 1s, 2s, 3s, 5s or 10s!
As well as counting, number lines can also be used for finding one more or one less than any given number. For example, you could ask your child to find one more than 5. To do this, they would find the number 5 on the number line and then count forwards to find one more. Similarly, they can count back to find one less.
Using the same principle, children will move on to use number lines for addition and subtraction. Once they are confident counting in ones, they can also use larger numbers to count on in step sizes. For example, if they wanted to solve the calculation 4 + 12, they could begin by adding the ten to get to 14. They would then count on two more ones to get to 16. Or, to solve 5 + 30, they could add 10 three times.
Another great way of using a number line is to find missing numbers. You can replicate this at home using your own visual representation of a number line, for example a washing line. You could peg numbers onto a washing line in order and miss out a number in the sequence. Then, your child has to find which number is missing by looking at the two numbers on either side. Eventually, this will lead on to children using number lines with fewer numbers, for example a number line counting up in 2s or 10s. This is great for helping children to learn their times tables and can help with practising multiplication.
Practise finding numbers on the number line with this Finding Numbers 0 - 20 on a Number Line (Ages 5 - 6).
Use a number line to find one more and one less.
This Adding 3 Single Digit Numbers on a Number Line is great for practising adding three numbers together and using mental maths skills.
Practise subtraction with this Subtraction with a Number Line Resource Pack.
Your child can practise their 2, 3 and 5 times tables and find the missing numbers with this Counting Forwards and Backwards in Steps of 2, 3 and 5.
This Multiplication: Number Lines resource will help to teach your child how to use a number line for multiplication.
Find and estimate missing numbers on a number line with this Ordering and Estimating Numbers 0 - 100 on a Number Line.
This Number Lines Pack has various number lines for you to choose from, including blank number lines.
If you enjoyed reading this blog about How to Use a Number Line in Key Stage 1, why not explore more from our range of maths blogs? For instance, this one about Support Your Child’s Maths Learning: Shape has lots of useful ideas for parents, carers and home educators.
Here are three more to try too!
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