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Lesson Topics Discussion Quiz: Class Homework

Example1

Title: Multiplication

Grade 4+ Lesson s4-l2

Explanation: The best way to understand multiplication is by looking at some examples. Take turns and read each example for easy understanding.

Examples

Topics → Definition Example1

Multiply 124 by 16.

Step: 1

To multiply 124 by 6, organize the digits based on their place values and perform the multiplication for each digit.
First, calculate 4 × 6 = 24. Write 4 in the ones place and carry over 2.
Next, multiply 6 × 2 = 12. Adding the carried over 2 results in 12 + 2 = 14. Write 4 in the tens place and carry over 1.
Finally, multiply 1 × 6 = 6. Write down 6 in the hundreds place and add the carried over 1, resulting in 1 + 6 = 7.
Therefore, 124 multiplied by 6 equals 744.

$1a$

Explanation:

In this step, for the ones place, 4 × 6 = 24. Write 4, carry 2.For the tens place, 2 × 6 = 12. Add the 2 to get 14. Write 4, carry 1. For the hundreds place, 1 × 6 = 6. Add the 1 to get 7. Thus, 124 × 6 = 744.

Step: 2

Now, place a zero (0) under the first partial product, positioning it before writing the second partial product on the next line. Multiply 1 by each digit of 124: 1 × 4 = 4, write 5 in the tens place.
Next, multiply 1 by 2: 1 × 2 = 2. Write 2 in the hundreds column.
Finally, multiply 1 by 1: 1 × 1 = 1. Write 1 in the thousands column.

Therefore, 124 multiplied by 10 equals 1240.

$2a$

Explanation:

In this step, place a zero (0) under the first partial product before writing the second partial product. To multiply 105 by 1, we calculate: 1 x 4 = 4, 1 x 2 = 2, and 1 x 1 = 1. The final answer is 1240.

Step: 3

Add both partial products to get the final product, i.e., 744 + 1240 =1984.
Therefore, the final product is 1984.

$3a$

Explanation:

Add both results to get a final answer. Now we need to add 744 + 1240 to get 1948.