Addition

What is Addition?

• Addition is taking two or more groups and putting them together to see how many you have in total.
• We use the plus sign (+) to show we are adding.
• The answer to an addition problem is called the Sum.

The Parts of an Addition Sentence Every addition problem looks like a little story: 2 + 3 = 5

• 2 and 3 are the groups we start with.
• + tells us to join them together.
• = means "is the same as."
• 5 is the Sum (the total).

Ways to Solve Addition If you get stuck, try one of these "Counting Tools":

1. Use Your Fingers Hold up 2 fingers on one hand and 3 fingers on the other. Count them all together: 1, 2, 3, 4, 5!

2. Draw a Picture Draw dots or hearts for each number.

• To solve, draw 4 dots and then 2 more. Count the whole pile.

3. Use a Number Line

• Start at the first number (like 4).
• "Hop" forward the number of times the second number says (hop 2 times).
• Where did you land? On the 6!

The "Counting On" Trick This is a fast way to add in your head:

1. Put the big number in your brain (Example: , put 7 in your brain).
2. Count up using the smaller number: "7... 8, 9."
3. The answer is 9!

Why Do We Learn This?

• Shopping: To know how many items are in your basket.
• Games: To add up your points to see if you won.
• Sharing: To make sure everyone gets enough snacks when you bring two different bags together.

Lesson Summary

• Addition means joining groups.
• The + sign means add, and the = sign means the total.
• The result is called the Sum.