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Last updated on May 26th, 2025

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20 as a Decimal

Professor Greenline Explaining Math Concepts

It is a simple question on decimal representation. Numbers can be represented in different forms, including whole numbers and decimals. A whole number is an integer without a fractional or decimal part. A decimal is a way to express numbers using a decimal point to separate the whole part from any fractional part. The numbers to the left of the decimal point represent the whole number, and those to the right represent the fractional part, if any.

20 as a Decimal for Thai Students
Professor Greenline from BrightChamps

What is 20 as a decimal?

20 as a decimal

 

Answer

 

20 as a decimal is written as 20.0. It is a terminating decimal because it does not have any infinite repeating digits.

 

Explanation

 

To represent the whole number 20 as a decimal, we simply add a decimal point followed by a zero. This does not change the value of the number, but it shows that there is no fractional part.

 

Step 1: Identify the whole number, which is 20 in this case.

 

Step 2: Add a decimal point followed by a zero to indicate the absence of a fractional part. The process is straightforward as the number is already an integer, so adding ".0" confirms its representation as a decimal.

Therefore, the decimal representation of 20 is 20.0.

Professor Greenline from BrightChamps

Important Glossaries for 20 as a decimal

  • Whole Number: A non-negative integer without any decimal or fractional part.

 

  • Decimal: A number that includes a decimal point to separate the whole part from the fractional part.

 

  • Decimal Point: A dot used to separate the whole number from the fractional part in a decimal notation.

 

  • Terminating Decimal: A decimal number that ends and does not continue infinitely.

 

  • Integer: A whole number that can be positive, negative, or zero, without any decimal or fractional part.
Professor Greenline from BrightChamps

About BrightChamps in Thailand

At BrightChamps, math questions go beyond simple problems—they open the door to endless opportunities! Our goal is to help children throughout Thailand master important skills, such as today’s focus on the 20 as a Decimal, with a special focus on decimal conversions—in a way that’s engaging, fun, and simple to follow. Whether your child is calculating the speed of a roller coaster at Dream World, tracking scores at a local football match, or managing their allowance to buy the latest gadgets, solid math skills give them the confidence to handle everyday tasks. Our lessons are designed to be interactive and enjoyable. Because children in Thailand have different learning styles, we customize our teaching to suit each one. From the busy streets of Bangkok to the tropical islands of Phuket, BrightChamps brings math to life, making it relatable and exciting across Thailand. Let’s make decimal conversions a fun part of every child’s math journey!
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