SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Example

Title: Multiplications

Grade: 3-a Lesson: S1-L8

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 20 x 9

Arrange the numbers in vertically.

$1a$

Explanation: Place the multiplicand 20 on top and multiplier 9 on bottom.

Step: 1b

Multiply the digit in the one’s place, which is 9 in this case, with the multiplicand 0. This will give 0 × 9=0.

$1b$

Explanation: In this step, multiply 0 by 9, to get 0. Place the 0 in one’s column.

Step: 1c

Multiplying with the ten’s column digit 2 by 9. This will give 2 × 9 =18.

$1c$

Explanation: In this step, multiply the top ten’s digit, which is 2 by the bottom one digit 9. This will give 2 × 9 =18. Write down the number 18 next to the 0. This way we get the final answer 180.

Step: 1d

The result obtained after multiplication is 20 × 9 =180.

$1d$

Explanation: Thus, the answer is 180, obtained by multiplying 20 with 9.