SaiBook.us Addition

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

Example

Title: Addition

Grade: 3-a Lesson: S4-L4

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

Examples:

ADD 1899 and 670

Step 1a

ADD 1899 + 670

Add digits in ones place value or from the right.

$1a$

Explanation: 9, 0 are the ones place values i.e, 9 + 0 = 9. Place the 9 under the ones place in answer column.

Step 1b

Then add the tens place value.

$1b$

Explanation: 9, 7 is the tens place value. Add tens place value i.e, 9 + 7 = 16. Place the 6 under the tens place column and place the 1 above 6.

Step 1c

Add the hundred place numbers.

$1c$

Explanation: 8, 6 is the hundreds place value and carryforward value is 1. Add hundreds place values i.e, 8 + 6 + 1 = 15. Place the 1 under the hundreds place column and place the 5 above 1.

Step 1d

Finally the add the thousands place numbers, sum of 1899 + 670 will be 2569.

$1d$

Explanation: 1, 0 are in thousands place and 1 is carry forward value. i.e, 1 + 0 + 1 = 2. Place the 2 next to the 1 in the answer row i.e,1899 + 670 = 2569.