To find the total, or sum, by combining two or more parts (addends), or to increase an amount by adding another.

To make something greater/larger in size or quantity.

To partition one part from another (the subtrahend from the difference), or to decrease an amount by taking an amount away.

To make something smaller in size or quantity.

Create addition and subtraction stories 

Maths

In this unit pupils will find missing addends in equations. They will partition a whole into 2 parts representing first, then, now stories with subtraction equations. They will learn + and - are inverse operations. In the future unit pupils will explain that addition is commutative. They will find pairs of numbers to 10 and add or subtract 1 from any number.

In prior learning, pupils will have learnt to count confidently and have developed a deep understanding of the numbers to 10, the relationships between them and the patterns within those numbers. In this unit pupils will find missing addends. They will partition a whole into two parts and represent it with subtraction equations learning that addition and subtraction are inverse operations.

Additive structures: addition and subtraction

Does this story show addition or subtraction?

What has been added in this story?
First, there was 1 pencil in the pot.
Then, I put 6 pencils into the pot. 
Now, there are 7 pencils in the pot. 

Which equation matches this subtraction story?

Write the equation for this story. 
First, there were 4 teddies on the mat.
Then, 6 more teddies were placed on the mat.
Now, there are 10 teddies on the mat.

Which keyword is missing from this statement?
When you add to a group of objects, the amount of objects {{ }}.

First, there were 7 children. Then, 2 more arrived. Now there are 9 children.

First there were 9 children. Then, 2 children left. Now, there are 7 children.

Which story is this picture representing?

First, Aisha had 6 pounds. Then, she spent 3 pounds. Now, she has 9 pounds.

First, Aisha had 9 pounds. Then, she spent 3 pounds. Now, she has 6 pounds.

First, Aisha had 6 pounds. Then, she spent 9 pounds. Now, she has 3 pounds.

Which 'First, then, now' story is represented by this bar model?

What equation is shown on this number line?

Alex is collecting leaves. First, he picks up 5 leaves. Then, he picks up 4 more leaves. Now, he has {{ }} leaves. 

Aisha was collecting conkers. First, she had 10 conkers in a bag. Then, 7 fell out of the bag. Now, there are {{ }} conkers in the bag.

This lesson will soon be taken down.

Create addition and subtraction stories

Lesson outcome