SaiBook.us Decimals

Lesson Example Discussion Quiz: Class Homework

Example

Title: Multiplication of decimals with Whole number

Grade: 5-a Lesson: S2-L1

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

Examples:

Find the product of 111 \$\times\$ 34.1.

Step 1a

Multiply the given numbers: 111 and 34.1.

$1a$

Explanation: In this step,we arrange the numbers.

Step 1b

Multiply the numbers as whole numbers by removing the decimal point.

$1b$

Explanation: In this step, ignore the decimal point and multiply the two numbers following the regular multiplication method i.e., \$111 \times 341 = 37851\$.

Step 1c

After multiplying two numbers, count the total number of decimal places.

The product will have the same number of decimal places.

$1c$

Explanation: In this step, determine the decimal places in each number by counting the digits to the right of the decimal point. 34.1, there is one decimal place.

Therefore, the total decimal places are 1. 111 × 34.1 = 3785.1.