SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Example

Title: Multiplications

Grade: 3-a Lesson: S1-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

Find the product of 13 x 7

Arrange the numbers in vertically.

$1a$

Explanation: Place the multiplicand 13 on top and multiplier 7 on bottom.

Step: 1b

Multiply the digit in the one’s place, which is 7 in this case, with the multiplicand 3. This will give 3 × 7=21.

$1b$

Explanation: In this step, multiply 3 by 7, to get 21. Place the 1 in one’s column and carry over the 2 to the preceding in ten’s column.

Step: 1c

Multiplying with the ten’s column digit 1 by 7. This will give 1 × 7 =7.

$1c$

Explanation: In this step, multiply the top ten’s digit, which is 1 by the bottom one digit 7. This will give 1 × 7 =7. Add 7 to the carry-over number 2, (7 + 2=9). We get the answer is 9. Write down the number 9 next to the 1. This way we get the final answer 91."

Step: 1d

The result obtained after multiplication is 13 × 7 =91.

$1d$

Explanation: Thus, the answer is 91, obtained by multiplying 13 with 7.