SaiBook.us Decimals

Lesson Example Discussion Quiz: Class Homework

Example

Title: Decimal Divisions

Grade: 5-a Lesson: S3-L6

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 division of decimal 85.34 ÷ 17.

Step 1a

First, multiply the dividend and divisor with 100 then we get 8534 ÷ 1700.

$1a$

Explanation: In this step, first, convert the decimal number into a whole number, so multiply the dividend and divisor by 100, and then we get 8534 ÷ 1700.

Step 1b

Divide the first digit of the dividend (8) by the divisor (1700). Since 8 is less than 1700, we need to consider the next digits as well. Here, 8534 ÷ 1700 then we get a quotient of 5 with a remainder of 34.

$1b$

Explanation: In this step, to divide 8534 by 1700, we divide the first digit of the dividend- 8, by 1700. Since 8 is less than 1700, we consider the next digits as well. We get a quotient of 5 and a remainder of 34.

Step 1c

The new dividend value is 34. If the dividend is less than the divisor, place two zeroes and divide. Divide 3400 by 1700. The quotient is 2 with no remainder.

$1c$

Explanation: In this step, the new dividend value is 34. If it’s less than the divisor, place two zeroes, then divide. Divide 3400 by 1700. The quotient is 2 with no remainder.

Step 1d

Therefore,85.34 ÷ 17 = 5.02

$1d$

Explanation: Hence, the result of dividing 80.34 by 17 is equal to 5.02.