how do you write 90 as a decimal
Understand the Problem
The question is asking how to express the number 90 in decimal form. Since 90 is already a whole number, it can be expressed as 90.0 to indicate it is a decimal.
Answer
$90.0$
Answer for screen readers
The decimal representation of 90 is $90.0$.
Steps to Solve
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Recognize whole numbers 90 is a whole number and does not require any changes to become a decimal.
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Add decimal point To explicitly show that it is in decimal form, add a decimal point and a zero at the end. So, 90 becomes 90.0.
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Final representation The decimal representation of the number 90 is now clearly indicated as 90.0.
The decimal representation of 90 is $90.0$.
More Information
Expressing whole numbers in decimal form is common in various calculations, especially in fields that require precision, such as finance and engineering. The addition of ".0" clarifies the number's decimal status.
Tips
A common mistake is to think that whole numbers cannot be expressed in decimal form. Remember that all whole numbers can simply have ".0" added to them to show they are decimals.
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