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.

• 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.