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Contributor: Stefani Allegretti. Lesson ID: 14118
Addition and subtraction are connected, like opposite sides of a coin! Get ready to make some math connections!
One side has a picture of Abraham Lincoln. He was the 16th president of the United States!
The other side has a different picture.
Each side of the penny is different but is still part of the same coin!
Subtraction and addition are like that!
They are connected, just like the two sides of a penny!
Get ready, get set, go!
Time to explore the connection between addition and subtraction!
Addition is so much fun!
When you add, you have more than you had before!
Imagine you have five marbles in a bag, and you get two more.
Add them to find out!
5 marbles + 2 marbles = 7 marbles!
Addition is so much fun!
Now, try subtraction using the same numbers!
Subtracting is taking something away from the total.
When you subtract, you have less than you had before.
There are 7 marbles in the bag.
You take 5 marbles out.
There are 2 marbles left!
7 marbles - 5 marbles = 2 marbles
Look at the addition problem and the subtraction problem together.
5 + 2 = 7
7 - 2 = 5
The math problems are the opposite of each other.
The numbers are just switched around.
Watch the video to explore this connection more!
Move on to the Got It? section for more math fun!
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