SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Example

Title: Multiplications

Grade: 3-a Lesson: S3-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 44 & 25.

Arrange the numbers 44 and 25 in columns according to their places.
Multiply 5 by each digit of 44:
Start by multiplying 5 by 4, which gives us 20 (4 x 5 = 5). Write 0 in the one’s column and 2 in the ten’s place.
Then, multiply 5 by 4 (4 x 5 = 20),20 + carry-over (2) = 22. Write 22 in the tens column.
Thus, our final answer is 220.

$1a$

Explanation: In this step, arrange 44 and 25 in columns according to their places. Multiply 5 by 4 to get 20. Write 0 in the one’s place and 2 in the tens place. Multiply 5 by 4 again, and add the carry-over from the previous multiplication, which is 2, to get 22. Write 22 in the tens column. The final answer is 220.

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 44, follow these steps.
Multiplying 2 by 4 gives us 8 (2 x 4 = 8). Write 8 in the tens column.
Next, multiply 2 by 4 give us 8. Write 8 in the hundreds column.
Our final answer is 880.

$1c$

Explanation: In this step, To find the product of 2 multiplied by each digit of 44, follow these steps: Multiply 4 by 2 to get 8. Write down 8 in the tens column. Multiply 2 by 4 to get 8. Write 8 in the hundreds column. The final answer is 880.

Step: 1d

Add both partial products to get the final product
This means 220 + 880 = 1100
Therefore, the final product is 1100.

$1d$

Explanation: Add both results to get a final answer. Now, we need to add 220 + 880 to get 1100.