BrightChamps Logo
Hamburger Menu Icon for BrightChamps Website Navigation
Login
Creative Math Ideas Image
Live Math Learners Count Icon182 Learners

Last updated on May 26th, 2025

Math Whiteboard Illustration

400 as a decimal

Professor Greenline Explaining Math Concepts

Understanding decimal representation is straightforward. A decimal represents a number using a base ten system, which includes a decimal point to distinguish the whole part from the fractional part. In this context, though, we are discussing whole numbers like 400, which can be directly represented as a decimal without any fractional component. The decimal point is followed by zero, indicating there is no fractional part.

400 as a decimal for UK Students
Professor Greenline from BrightChamps

What is 400 as a decimal?

400 as a decimal

Answer

 

400 as a decimal is written as 400.0. It is a terminating decimal, meaning it does not repeat infinitely.

 

Explanation

 

To express 400 as a decimal, we simply place a decimal point followed by a zero, indicating that there are no fractional parts:

 

Step 1: Identify the whole number, which is 400.

 

Step 2: As there are no fractional components, append ".0" to the whole number.

 

Step 3: The result is 400.0, a terminating decimal.

Professor Greenline from BrightChamps

Important Glossaries for 400 as a decimal

  • Whole Number: A number without any fractional or decimal component.
     
  • Decimal: A number expressed using the base ten, including a decimal point to separate the whole number from any fractional part.
     
  • Terminating Decimal: A decimal number that has a finite number of digits after the decimal point.
     
  • Decimal Point: The dot used in decimal numbers to separate the whole part from the fractional part.
     
  • Fractional Part: The part of a decimal number that comes after the decimal point, representing a portion of a whole.
Professor Greenline from BrightChamps

About BrightChamps in United Kingdom

At BrightChamps, we see math questions as more than just sums—they’re gateways to endless opportunities! Our mission is to help children throughout the United Kingdom develop essential skills, focusing today on the 400 as a decimal with special attention to decimal conversions—in a lively, enjoyable, and easy-to-understand way. Whether your child is working out the speed of a roller coaster at Alton Towers, following scores at a local football match, or managing their pocket money to buy the latest gadgets, mastering math empowers them to face daily challenges confidently. Our interactive sessions ensure learning is both simple and enjoyable. Because every child in the UK has their own learning style, we tailor our approach to fit them perfectly. From the bustling streets of London to the scenic coasts of Cornwall, BrightChamps makes math relatable and fun throughout the UK. Let’s make decimal conversions a delightful part of your child’s math journey!
INDONESIA - Axa Tower 45th floor, JL prof. Dr Satrio Kav. 18, Kel. Karet Kuningan, Kec. Setiabudi, Kota Adm. Jakarta Selatan, Prov. DKI Jakarta
INDIA - H.No. 8-2-699/1, SyNo. 346, Rd No. 12, Banjara Hills, Hyderabad, Telangana - 500034
SINGAPORE - 60 Paya Lebar Road #05-16, Paya Lebar Square, Singapore (409051)
USA - 251, Little Falls Drive, Wilmington, Delaware 19808
VIETNAM (Office 1) - Hung Vuong Building, 670 Ba Thang Hai, ward 14, district 10, Ho Chi Minh City
VIETNAM (Office 2) - 143 Nguyễn Thị Thập, Khu đô thị Him Lam, Quận 7, Thành phố Hồ Chí Minh 700000, Vietnam
Dubai - BrightChamps, 8W building 5th Floor, DAFZ, Dubai, United Arab Emirates
UK - Ground floor, Redwood House, Brotherswood Court, Almondsbury Business Park, Bristol, BS32 4QW, United Kingdom