SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Example

Title: Multiplications

Grade: 3-a Lesson: S4-L3

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 115 by 6.

Arrange the numbers vertically.
Multiply the digit at the one’s place by 6, i.e., 5 × 6 = 30 = 3 tens + 0 ones.
Write 0 in the one’s place and carry over 3 to the tens column."

$1a$

Explanation: In this step, arrange the numbers according to their places. Multiply the digit in the one’s place by 6, i.e., 5 × 6 = 30. This equals 3 tens and 0 ones. Write 0 in the one’s place and carry over 3 to the tens column.

Step: 1b

Multiply the digit in the tens place by 6, i.e., 6 x 1 = 6. Then, add 3 (carry over) to get 9, and write it in the tens column.

$1b$

Explanation: In this step, multiply the digit in the tens place by 6, i.e., 6 x 1 = 6. Add 3 (carry over) + 6 = 9, and write it in the tens column.

Step: 1c

"Finally, multiply the digit at the hundreds place by 6.
6 × 1 = 6 hundreds. Write 6 at the hundreds place.
Therefore,\$115 \times 6\$ is 690.

$1c$

Explanation: When 1 is multiplied by 6, we get 6. Write 6 in the hundred’s place. Hence, 115 multiplied by 6 is equal to 690.