RTS

• Mathematics
• 2nd Grade

Math

Addition and Subtraction

What symbol is this?

ADDITION

What symbol is this?

SUBTRACTION

What Does Addition Mean?

Addition means to add two or more numbers together to make one number that is greater in value. This number is called the sum.  

When we want to add numbers together, we use the plus sign:

+

Imagine you picked every apple from this apple tree. Count how many apples are on the tree!

Correct! You picked 7 apples from the apple tree!

Now imagine that your friend gave you 4 more apples from their apple tree!

How many apples do you have now?

1. 4
2. 40
3. 11
4. 19

What Does Subtraction Mean?

Subtraction means to subtract or take one number away from another number to get a number with less value. This number is called the difference.

When we want to subtract one number from another, we use the minus sign   :

-

Imagine you have these pencils. Count how many pencils you have!

So if you had 10 pencils, but then gave 3 to a friend, how many pencils do you have now? Count how many pencils you have now!

X

1. 7
2. 6
3. 5
4. 4