SaiBook.us Addition

Example

Title: Addition

Grade: 2-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 397 and 35

Step 1a

Add 397 + 35

Arrange the numbers according to their place values. Start adding the numbers from ones to right i.e., 7 + 5 = 12.

$1a$

Explanation: Add the digits in the ones place (7 + 5 = 12).Write down 2 in the ones column. and write down 1 in the tens column.

Step 1b

Now we add the tens digit i.e., 9 + 3 + 1(carry-over) = 13.Write down 3 in the tens column. and write carry 1 to the hundreds column.

$1b$

Explanation: Add the digits in the tens column(9 + 3 + 1 = 13).

Step 1c

After this , add the digits in hundreds columni.e., 3 + 1 = 4. After adding both the columns we get, 397 + 35 = 432.

$1c$

Explanation: Add the digits in hundreds column(1 + 2 = 3). Therefore the sum of 397 and 35 is 432.