1st Grade Math

Basic Addition

Learn Basic Addition in 1st Grade Math from the production AIPH study guide.

Basic Concepts

In a nutshell: Addition means putting things together to make a bigger number.

## Putting Things Together Addition means bringing groups together to find out how many there are in total. We use the plus sign (+) to show addition. ## How Addition Works If you have 2 red balls and get 3 more, you have 2 + 3 balls altogether. Addition tells you the new total. ## Ways to Add - Use fingers - Draw dots or pictures - Use number lines ## Addition in Daily Life We add things all the time, like when collecting stickers or sharing snacks with friends. ### Addition Sentences An addition sentence looks like this: \( 4 + 2 = 6 \). The numbers you add together are called addends, and the answer is the sum. ### Real-World Connections Addition helps you figure out how many toys you have after getting a new one, or how many candies you and a friend have together.

a + b = c

Examples

  • Adding 3 toy cars to 2 toy cars: 3 + 2 = 5.
  • Adding 1 apple to a basket of 4 apples: 1 + 4 = 5.

Key terms

Addition
The process of finding the total when combining two or more numbers.
Sum
The answer to an addition problem.