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Last updated on March 3rd, 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 Singaporean 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 Singapore

At BrightChamps, we believe math questions are more than just exercises—they’re opportunities for growth! Our mission is to support children across Singapore in developing important skills, such as today’s focus on the 20 as a Decimal with a key emphasis on decimal conversions—in an engaging, enjoyable, and easy-to-understand way. Whether your child is calculating the speed of a roller coaster at Universal Studios Singapore, tracking scores at a local football match, or managing their allowance for the latest gadgets, strong math skills build their confidence to face daily tasks. Our lessons are interactive and fun. Since kids in Singapore have diverse learning styles, we customize our teaching to suit each child. From the bustling city streets to the scenic gardens, BrightChamps makes math come alive, making it relevant and exciting throughout Singapore. Let’s make decimal conversions an enjoyable part of every child’s learning journey!
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