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Lesson Topics Discussion Quiz: Class Homework

Example1

Title: Multiplication

Grade 4+ Lesson s2-l3

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

Find the product of 54 x 19.

Step: 1

First, place the multiplicand 54 on top and write the multiplier 19 below it.

Next, multiply the ones digit of the multiplier 9, with the multiplicand 54. This will give , 54 × 9 = 486. Write this as the first partial product on a new line.

$1a$

Explanation:

In this step, we’ll multiply 54 by 9. First, multiply 9 by 4 to get 36. Place 6 in the one’s place and carry 3 to the ten’s place. Next, multiply 5 by 9 to get 45. Add 45 to the carried-over 3 to get 48 Therefore, the answer is 486, the first partial product placed in one line.

Step: 2

Write a 0 in the one’s column. Multiply 1 by the multiplicand.
This will give 54 × 1 = 54. Finally, we get 540.

$2a$

Explanation:

In this step, multiply the bottom tens digit 5, by the number on the top, 54. So, 4 x 1 = 4. Write down the number 4 next to the 0. For 5 x 1 = 5, write 5 next to the 4 already wrote down. This way, you will get the final answer of 540. This is the second partial product placed in another line.

Step: 3

Add both the first and second partial products 486 + 540 = 1026.

$3a$

Explanation:

Add both of your results to get a final answer.
Now, we need to add 486 + 540 to get 1026.