Addition Within 40

​Mathematic Lesson

​Addition Within 40 - Addition Without Regrouping

Definition of Addition

Addition in math is a process of combining two or more numbers. Addends are the numbers being added, and the result or the final answer we get after the process is called the sum. It is one of the essential mathematical functions we use in our everyday activities.

​Solve Addition Problem

​We can use the number line to add. Let us look at the following addition example.

​​Using The Number Line

​​Using Fingers

Addition of small numbers can be done using your fingers.

​We can use the number line to add. Let us look at the following addition example.

​​Vertical Addition or Column Method

- Addition Without Regrouping

​​Using The Number Grid

Number chart is another way to add numbers.

Multiple Choice

The result of addition is . . . .

• 26

• 27

• 28

• 29

Match

Match the following

22

36

34

• 22

• 36

• 34