Lesson

Title: Addition

Grade: 1-a Lesson: S2-L4

Explanation: Hello students, let us learn a new topic in addition today with definitions, concepts, examples, and worksheets included.

Lesson:

Definition: Addition

Addition in the simplest form is taking two numbers and adding them together.

The symbol used to show addition is the + (plus symbol).

1

.

Explanation: Add the numbers 55 and 2, we get the sum 57.

Definition: Addend

Addends are the numbers or terms that are added together to form the sum.

2

.

Explanation: Here 50 and 5 are addends and 55 is the sum.

Definition: Sum

The answer we get after the process is called the sum.

3

.

Explanation: In this image, Sita had 10 chocolates and her mother gave 5 more chocolates, and the total chocolates she had was 15.

Table

Step Description A + B = C

1

Nineteen plus One is equal to Twenty

19

+

1

=

20

2

Nineteen plus Two is equal to Twenty One

19

+

2

=

21

3

Nineteen plus Three is equal to Twenty Two

19

+

3

=

22

4

Nineteen plus Four is equal to Twenty Three

19

+

4

=

23

5

Nineteen plus Five is equal to Twenty Four

19

+

5

=

24


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