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Lesson Topics Discussion Quiz: Class Homework

Example1

Title: Multiplication

Grade 4+ Lesson s2-l1

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 51 x 24.

Step: 1

First, place the multiplicand 51 on top and write the multiplier 24 below it.

Next, multiply the ones digit of the multiplier, 4, with the multiplicand 51. This will give you 51 × 4 = 204. Write this as the first partial product on a new line.

$1a$

Explanation:

In this step, we’ll multiply 51 by 4. First, multiply 4 by 1 to get 4. Next, multiply 5 by 4 to get 20. Therefore, the answer is 204, 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 51 × 2 = 1020. Finally, we get 1020.

$2a$

Explanation:

In this step, multiply the bottom tens digit, 2, by the number on the top, 1. So, 2 x 1 = 2. Write down the number 0 next to the 0. For 5 x 2 = 10, write 10 next to the 2 you already wrote down. This way, you will get the final answer of 1020. This is the second partial product placed in another line.

Step: 3

Add both the first and second partial products 204 + 1020=1224.

$3a$

Explanation:

Add both of your results to get a final answer. Now need to add 204 + 1020 to get 1224.