Math Addition Facts to 20

Addition is a process which children learn quite naturally as soon as they learn to start counting. During kindergarten and first grade, adding piles of objects together is really important and reinforces childrens understanding of place value and 1:1 correspondence.

Later on, when children are confident adding piles of objects together, they can progress on to number lines or counting on in their heads. When children have understood this, they can begin to learn their addition facts and progress on to column addition.

During 2nd grade, children should be learning the following mental addition skills:

• know their addition facts up to 20+20;
• mentally adding on 1, 10 or 100 to any 2 or 3-digit number.

For pencil and paper methods, children should be able to:

• add two 3-digit numbers together;
• add together three or four 2-digit numbers.

The following worksheets involve learning your addition facts to 20.

The sheets in this section are for children at the beginning of 2nd grade. They involve the skill of adding numbers up to 20.

Most of the sheets also include a challenge or a key question to help your child understand how addition works and to extend learning and thinking.

An answer sheet is available for each worksheet provided.

The worksheets in this section are carefully graded, allowing you to introduce concepts at an easier level before introducing harder work.

Using the sheets in this section will help your child to:

• add together numbers up to 20;
• work out addition sums where the total is given but one of the addends is missing.

All the sheets in this section will help your child to develop their speed and accuracy at adding.

The sheets in this section are all about adding numbers whose sum up to 20.

There are more challenging sheets, adding up to 20+20 further down the page.

The following worksheets involve learning to add 3 digits mentally.

These worksheets are at an easier level than those below, and give children confidence adding 3 numbers instead of just two.

Using these sheets will help your child to:

• add 3 digits mentally;
• work out an addition fact where the total is given but an addend is missing.

Try the Addition to 20+20 worksheets at the Math Salamanders!

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• More Addition to 20 Worksheets

Here are some of our other related resources you might want to look at.

The number line worksheets on this page involve numbers using integers only.

They have been designed to help kids with their addition and subtraction facts up to 20.

The following webpages involve learning addition facts to 12+12.

The sheets in this section are for children at the beginning of 2nd grade. They involve the skill of adding numbers up to 12+12.

Using the sheets in this section will help your child to:

• add together numbers up to 12;
• work out addition sums where the total is given but one of the addends is missing.

All the sheets in this section will help your child to develop their speed and accuracy at adding.

This section involves using place value and addition to add either 1, 10 or 100 from any 2 or 3 digit number.

This skill is very important to establish at this grade, as it is a foundation building block from which many other math skills are built.

Using these sheets will help your child to:

• add 1 or 10 to a range of 2 digit numbers;
• add 1, 10 or 100 to a range of 3 digit numbers.

Using these sheets will help to develop your child's understanding of place value to 1000.

The following sheets involve adding 3 digit numbers in columns.

Using these sheets will help your child to:

• add up 3 digit numbers in columns;
• use the standard algorithm for column addition.

All these sheets will help your child understand how to add columns of numbers together.

We have a range of 2nd grade addition word problem worksheets.

They involve solving a range of addition word problems up to 150.

There are a range of sheets from easier addition word problems up to 50, to solving multi-addend problems up to 150.

If you are looking for some great addition games to support your child's learning, then look no further.

There are a wide selection of addition math games on the page below, which will develop your child's thinking and reasoning skills as well as their addition fact knowledge.

Using these games will help you child to:

• learn their addition facts to 20+20;
• develop their strategic thinking skills.

Whether you are looking for a free Homeschool Math Worksheet collection, banks of useful Math resources for teaching kids, or simply wanting to improve your child's Math learning at home, there is something here at the Math Salamanders for you!

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

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