SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Example

Title: Multiplications

Grade: 3-a Lesson: S3-L1

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 32 by 24.

Arrange the numbers 32 and 24 in columns according to their places.
First, Multiply 4 by each digit of 32:
Start by multiplying 4 by 2, which gives us 8 (4 x 2 = 8). Write 8 in the one’s column.
Next, multiply 4 by 3, give us 12(3 x 4 = 12), and write 12 in the tens place.
Thus, our final answer is 128.

$1a$

Explanation: In this step, arrange 32 and 24 in columns according to their places. Multiply 4 by each digit of 32. 4 x 2 = 8; write 8 in one column. 4 x 3 = 12; write 12 in the tens place. The final answer is 128.

Step: 1b

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

$1b$

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: 1c

To find the product of 2 multiplied by each digit of 32, follow these steps.
Multiplying 2 by 2 gives us 4 (2 x 2 = 4). Write 4 in the tens column.
Next, multiply 2 by 3, give us 6 (3 x 2 = 6). Write 6 in the hundreds column.
Our final answer is 640.

$1c$

Explanation: To find the product of 2 multiplied by each digit of 32, multiply 2 by 3 to get 6. Write 6 in the tens column. Multiply 2 by 3 to get 6. Write 6 in the hundreds column to get the final answer: 640.

Step: 1d

Add both partial products to get the final product
This means 128 + 640 = 768.
Therefore, the final product is 768.

$1d$

Explanation: Add both results to get a final answer. Now, we need to add 128 + 640 to get 768.