SaiBook.us Addition

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

Example

Title: Addition

Grade: 1-a Lesson: S2-L5

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

Examples:

ADD 65 and 5

Step 1a

Add 65 + 5

Add digits in ones place value or from the right.

$1a$

Explanation: 5 , 5 are the ones place values i.e., 5 + 5 = 10 10 is larger than nine so you have to regroup or carry. Place the 0 under the one’s place column and place the 1 above 6

Step 1b

Add the tens place value.

$1b$

Explanation: 6 is the tens place value, and 1 is the carry forward value. Add tens place value and carry forward value i.e., 6 + 1 = 7

Step 1c

Finally the sum of 65 + 5 will be 70.

$1c$

Explanation: Place the 7 next to the 0 in the answer row i.e, 65 + 5 = 70.