SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Example

Title: Multiplications

Grade: 3-a Lesson: S2-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

Multiply 30 by 30.

Arrange the numbers 30 and 30 in columns according to their places.

$1a$

Explanation: In this step, arrange the numbers 30 as the multiplicand and 30 as the multiplier.

Step: 1b

Multiply 0 by each digit of 30: Start by multiplying 0 by 0, which gives us 0 (0 x 0 = 0). We write 0 in the one’s column. Then, we multiply 0 by 3 (0 x 3 = 0) and write 0 in the tens place. Thus, our final answer is 00.

$1b$

Explanation: In this step, to multiply 0 by each digit of 30, we get 00 as the answer.

Step: 1c

Now, we will place a zero (0) under the first partial product, that is, before writing the second partial product in the next line

$1c$

Explanation: In this step, before writing the second partial product in the next line, we will place a zero(0) under the first partial product.

Step: 1d

To find the product of 3 multiplied by each digit of 30, follow these steps.
Multiplying 3 by 0 gives us 0 (3 x 0 = 0). We write 0 in the ten’s column.
Then, we multiply 3 by 3 (3 x 3 = 9) and write 9 in the hundreds column.
Our final answer is 900.

$1d$

Explanation: In this step, multiply 3 by each digit of 30. We start with 0. 3 x 0 = 0. Write 0 in the ten’s column. Then, 3 x 3 = 9. Write 9 in the hundreds column. The final answer is 900.

Step: 1e

Add both partial products to get the final product
This means 00 + 900 = 900.
Therefore, the final product is 900.

$1e$

Explanation: Add both results to get a final answer. Now, we need to add 00 + 900 to get 900.