SaiBook.us Addition

Lesson Example Discussion s1 s2 s3 s4 s5 Quiz: Class Homework

Example

Title: Addition

Grade: 3-a Lesson: S2-L3

Explanation: The best way to understand addition is by looking at some examples.Take turns and read each example for easy understanding.

Examples:

ADD 400 and 400

Step 1a

ADD 400 + 400

Write the numbers one below the other as per the places of the digits. 400 + 400. Add units place i.e.,0 + 0 = 0. So,write 0 directly to the One’s column.

$1a$

Explanation: Arrange the number according to their place values. Start adding from the digits in ones place(0 + 0 = 0). Write 0 directly to the One’s column.

Step 1b

Add ten’s place. So, it will be 0 + 0 = 0. Write 0 directly to the Ten’s place.

$1b$

Explanation: Add the digits in the tens column. This means, there is no carryover 0 + 0 = 0. Here the sum is 0. The tens digit of the sum, that is, 0, Write 0 directly to the Ten’s place.

Step 1c

Add hundred’s place. So, it will be 4 + 4 = 8. Now there is no carryover and we can directly write 8 in the hundredth’s column. Therefore, the sum of 400 + 400 = 800.

$1c$

Explanation: Now, add the digits in the hundred’s place. That is, 4 + 4 = 8. Hence, 400 + 400 = 800.