Adding on a Number Line Worksheets

Welcome to our Adding on a Number Line Worksheet page.
Here you will find a selection of free printable addition worksheets, which involve using a number line to add up a range of numbers.

These worksheets have been designed for children working at a first or second grade level.

Adding on a Number Line

Using number lines is a great way to understand addition and to physically count on the correct number of ones required for the answer.

The sheets on this page have been designed for 1st and 2nd graders to help them understand how to work out addition problems by counting on the required number of ones.

There are two main ways to use a number line for addition:

  • Method 1 is to start at zero, count the first number in ones, then count on the second number in ones.
  • Method 2 is a more efficient way which is to start at the first number (not zero) and count on the second number in ones.

Both of these methods can be seen below.

adding on a number line methods

When children first learn to count along a number line they tend to use Method 1.

However, when this method has been learnt and understood, Method 2 should be introduced as a better and more efficient way to add using a number line.

On this page, we have a range of worksheets to develop counting along a number line within 10, 20 and 100.

There are 2 versions of each sheet:

  • Version (a) which is based on Method 2 to count on from the first number and is a more supported sheet
  • Version (b) has a blank number line so that any method can be used and requires more work from the child to answer

Using these adding on a number line worksheets will help your child to:

  • add numbers within 10, 20 or 100 using a number line;
  • use a number line to find a missing addend;

Adding on a Number Line Examples

These examples show how to add on a number line within 10, 20 or 100.

We also have several examples showing how to use a number line to find a missing addend.

Example 1)
Use the number line below to work out 6 + 3.

We need to start at number 6.

We need to count (or jump) on 3 ones.

adding on a number line example 1

This gives us: 6 + 3 = 9

Example 2)
Use the number line below to work out 9 + 7.

We need to start at number 9.

We need to count (or jump) on 7 ones.

adding on a number line example 2

This gives us: 9 + 7 = 16

Example 3)
Use the number line below to work out 57 + 6.

We need to start at number 57.

We need to count (or jump) on 6 ones.

adding on a number line example 3

This gives us: 57 + 6 = 63

Example 4)
Use the number line to find the missing number: 3 + ___ = 7.

We need to start at number 3.

adding on a number line example 4a

We need to count (or jump) on by ones until we get to number 7.

adding on a number line example 4b

We needed to count on (or jump) 4 ones.

This gives us: 3 + 4 = 7

Example 5)
Use the number line to find the missing number: 38 + ___ = 43.

We need to start at number 38 and fill in the number line up to 43.

adding on a number line example 5a

We need to count (or jump) on by ones until we get to number 43.

adding on a number line example 5b

We needed to count on (or jump) 5 ones.

This gives us: 38 + 5 = 43

Adding on a Number Line within 10 Worksheets

The sheets in this section involve adding two numbers together within a total value of 10.

Sheets A and B are identical, but sheet A offers more support.

Sheet 4 is a trickier sheet which involves using a number line to find the missing addend when the first number and the total are known.

Adding on a Number Line within 20 Worksheets

The sheets in this section involve adding two numbers together within a total value of 20.

Sheets A and B are identical, but sheet A offers more support.

Sheet 4 is a trickier sheet which involves using a number line to find the missing addend when the first number and the total are known.

Adding on a Number Line within 100 Worksheets

The sheets in this section involve adding two numbers together within a total value of 100.

Sheets A and B are identical, but sheet A offers more support with a pre-filled number line; sheet B has an empty number line.

Sheet 4 is a trickier sheet which involves using a number line to find the missing addend when the first number and the total are known.

More Recommended Math Worksheets

Take a look at some more of our worksheets similar to these.

Subtracting on a Number Line

These sheets are similar to those on this page but involve subtracting numbers using a number line for support.

They are mainly aimed at first and second graders.

Use these sheets to help you subtract numbers within 10, 20 or 100.

Looking for some number line printables?

We have some more printable number lines and number line worksheets that have a similar format to the sheets below.

First Grade Place Value Charts

Here you will find a range of Free Printable First Grade Place Value Charts.

These printable charts will help your child learn to read and write numbers to 100.

There is a selection of charts with numbers up to 99, and another section of charts going up to 100.

Some of the charts are partially filled to help your child learn their place value to 100.

Using these sheets will help your child to:

  • learn to count in tens and ones;
  • learn to read and write numbers to 100.

All the charts support elementary math benchmarks.

1st Grade Place Value Charts

First Grade Place Value and Counting Worksheets

Here you will find a range of 1st Grade Place Value Worksheets.

These sheets will help your child learn their place value, reading, writing and ordering numbers up to 100.

There are also some money worksheets involving counting in dimes and pennies to support place value learning.

Using these sheets will help your child to:

  • learn to count in tens and ones;
  • learn to order numbers to 100;
  • learn to count in dimes and pennies;
  • learn to read and write numbers to 100.
 

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The Math Salamanders hope you enjoy using these free printable Math worksheets and all our other Math games and resources.

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