SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Example

Title: Multiplications

Grade: 3-a Lesson: S3-L7

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 48 & 28.

Arrange the numbers 48 and 28 in columns according to their places.
Multiply 8 by each digit of 48:
Start by multiplying 8 by 8, which gives us 64 (8 x 8 = 64). Write 4 in the one’s column and 6 in the ten’s place.
Then, multiply 8 by 4 (4 x 8 = 32),32 + carry-over (6) = 36. Write 36 in the tens column.
Thus, our final answer is 384.

$1a$

Explanation: In this step, arrange 48 and 28 in columns according to their places. Multiply 8 by 8 to get 64. Write 4 in the one’s place and 6 in the tens place. Multiply 8 by 4 again, and add the carry-over from the previous multiplication, which is 6, to get 38. Write 384 in the tens column. The final answer is 384.

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 48, follow these steps.
Multiplying 2 by 8 gives us 8 (2 x 8 = 16). Write 6 in the tens column and carry 1 to the tens place.
Next, multiply 2 by 4 give us 8,add 8 + 1(carry-over) = 9. Write 9 in the hundreds column.
Our final answer is 960.

$1c$

Explanation: In this step, To find the product of 2 multiplied by each digit of 48, follow these steps: Multiply 2 by 8 to get 16. Write down 6 in the tens column and carry 1 to the tens place. Multiply 2 by 4 again, and add the carry-over from the previous multiplication, which is 1, to get 9. Write 9 in the hundreds column. The final answer is 960.

Step: 1d

Add both partial products to get the final product
This means 384 + 960 = 1344.
Therefore, the final product is 1344.

$1d$

Explanation: Add both results to get a final answer. Now, we need to add 384 + 960 to get 1344.