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Lesson Table Topics Discussion Quiz: Class Homework

Example1

Title: Multiplication

Grade 4+ Lesson s1-l5

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 43 x 27.

Step: 1

First, place the multiplicand 43 on top and write the multiplier 27 below it.

Next, multiply the ones digit of the multiplier, 7, with the multiplicand 43. This will give you 43 × 7 = 301. Write this as the first partial product on a new line.

$1a$

Explanation:

In this step, we’ll multiply 43 by 7. First, multiply 3 by 7 to get 21. Place 1 in the one’s place and carry 2 to the tens column. Next, multiply 4 by 7 to get 28. Add 28 to the carried-over 2 to get 30. Therefore, the answer is 301, the first partial product placed in one line.

Step: 2

Write a 0 in the one’s column. Multiply 2 by the multiplicand. This will give 43 × 2 = 86. Finally, we get 860.

$2a$

Explanation:

In this step, multiply the bottom tens digit, 2, by the number on the top, 3. So, 3 x 2 = 6. Write down the number 0 next to the 0. For 4 x 2 = 8, write the number 8 next to the 6 you already wrote down. This way, you will get the final answer of 860. This is the second partial product placed in another line.

Step: 3

Add both partial products to get the final product This will be 301 + 860 =1161.

$3a$

Explanation:

Add both of your results to get a final answer. Now need to add 301 + 860 to get 1161.