SaiBook.us Addition

Example

Title: Addition

Grade: 2-a Lesson: S1-L1

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

Examples:

Add 20 and 11

Step 1a

Add 20 + 11

Start adding the numbers from ones to right i.e., 0 + 1 = 1.

$1a$

Explanation: Add the digits in the ones place (0 + 1 = 1).Write down 4 in the one’s column.

Step 1b

Now we add the tens digit i.e., 2 + 1 = 3

$1b$

Explanation: Add the digits in the tens column(2 + 1 = 3).

Step 1c

After adding both the columns we get, 20 + 11 = 31.

$1c$

Explanation: Therefore the sum of 20 and 11 is 31.