SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Example

Title: Multiplications

Grade: 2-a Lesson: S3-L7

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

Examples:

Step: 1a

Find the product of 8 x 18

Arrange the numbers is vertically.

$1a$

Explanation: Arrange the numbers in multiplication form.

Step: 1b

First multiply the digit at the ones place by 8.
8 × 8 = 64 = 6tens + 4ones

Write 4 in the ones column and carry over 6 to the tens column.

$1b$

Explanation: Multiplication from the extreme right and then work our way to the left. Now, 8 times 8 gives us 64.
we will regroup 64 as 6 tens and 4 ones.So, the 4 stays down in the ones place while the 6 is carried over to the top in the tens place.

Step: 1c

Now multiply the digit at the tens place by 8.
1 × 8 = 8 tens
Now, 8 + 6 (carry over) = 14 tens.

Thus 18 x 8 = 144.

$1c$

Explanation: Now, we move to the next column of tens and multiply 1 by 8 in the tens place. 1 times 8 gives us 8 tens and along with that, we will add the 8 tens on the top. That gives us 14 tens.

Hence, 18 x 8 = 144.