SaiBook.us Math

Home Course Section Lesson

Lesson Topics Discussion Quiz: Class Homework

Example1

Title: Multiplication

Grade 4+ Lesson s2-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 56 x 29.

Step: 1

First, place the multiplicand 56 on top and write the multiplier 29 below it.

Next, multiply the ones digit of the multiplier, 9, with the multiplicand 56. This will give you 56 × 9 = 504. Write this as the first partial product on a new line.

$1a$

Explanation:

In this step, we’ll multiply 56 by 9. First, multiply 6 by 9 to get 54. Place 4 in the one’s place and carry 5 to the tens column. Next, multiply 5 by 9 to get 45. Add 45 to the carried-over 5 to get 50. Therefore, the answer is 504, 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 56 × 2 = 1120. Finally, we get 1120.

$2a$

Explanation:

In this step, multiply the bottom tens digit, 2, by the number on the top, 6. So, 2 x 6 = 12. Write 2 in the tens place and carry 1 to the next column. For 5 x 2 = 10, add 1 (from the carried-over 1) to get 11, and write 11 next to the 2 you already wrote down. This will give you the final answer of 1120. This is the second partial product placed on another line.

Step: 3

Add both the first and second partial products 504 + 1120=1624 .

$3a$

Explanation:

Add both of your results to get a final answer. Now need to add 504 + 1120 to get 1624.