SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Example

Title: Multiplications

Grade: 3-a Lesson: S4-L6

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

Multiply 126 by 9.

Arrange the numbers vertically.
Multiply the digit at the one’s place by 9, i.e., 6 × 9 = 54.
Write 4 in the one’s place and carry over 5 in the ten’s column.

$1a$

Explanation: In this step, arrange the numbers according to their places. Multiply the digit in the one’s place by 9, i.e., 6 × 9 = 54. Write 4 in the one’s place and carry over 5 in the ten’s column.

Step: 1b

Multiply the digit in the tens place by 9, i.e., 9 x 2 = 18. Then add 18 + 5 (carry over) = 23.
Write 3 in the ten’s place and 2 in the hundred’s column.

$1b$

Explanation: In this step, multiply the digit in the tens place by 9 (9 x 2 = 18), then add 18 + 5 (carry over) to get 23. Write 3 in the tens place and 2 in the hundreds column.

Step: 1c

Finally, multiply the digit at the hundreds place is multiplied by 9, i.e., 1 × 9 = 9. Then add 2 + 9 (carry over) = 11.
Write 11 at the hundreds place.
Therefore, 126 × 9 is 1134.

$1c$

Explanation: Multiply the digit at the hundreds place by 9, then add 2 and 9 (carry over) to get 11. Write 11 at the hundreds place. Therefore, 126 multiplied by 9 equals 1134.