SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Example

Title: Multiplications

Grade: 3-a Lesson: S3-L5

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 40 by 40.

Arrange the numbers 40 and 40 in columns according to their places. Multiply 0 by each digit of 40: 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 4 (0 x 4 = 0) and write 0 in the tens place. Thus, our final answer is 00.

$1a$

Explanation: In this step, arrange 40 and 40 in columns according to their places. Multiply 0 by each digit of 40, we get 00 as the answer.

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 4 multiplied by each digit of 40, follow these steps.
Multiplying 4 by 0 gives us 0 (4 x 0 = 0). Write 0 in the tens column..
Next, multiply 4 by 4, give us 16. Write 16 in the hundreds column.
Our final answer is 1600.

$1c$

Explanation: In this step, To find the product of 4 multiplied by each digit of 40, follow these steps: Multiply 4 by 0 to get 0. Write down 0 in the tens column. Multiply 4 by 4 to get 16. Write 16 in the hundreds column. The final answer is 1600.

Step: 1d

Add both partial products to get the final product
This means 00 + 1600 = 1600.
Therefore, the final product is 1600.

$1d$

Explanation: Add both results to get a final answer. Now, we need to add 00 + 1600 to get 1600.