This cannot really be answered because there are no decimal places. You can say 3000 millimetres is 3 metres. So 3 metres is either 0.3 decametres or 0.003 kilometres. These are decimals, but you are changing the prefix in front of the metre.
Chat with our AI personalities
It is simply 3,000.0 as a decimal
3000 as a decimal is simply 3000.0. As a fraction, 3000 can be expressed as 3000/1, which is already in its simplest form since 3000 and 1 do not share any common factors other than 1.
19.0 mm, or 0.019 metres, or 0.000019 kilometres?
One-fifth of 3000 can be calculated by dividing 3000 by 5. This results in 600, which is one-fifth of 3000. This can also be expressed as 3000 multiplied by 0.2, as 0.2 represents one-fifth in decimal form.
A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. A decimal representation does not require a decimal point. So the required decimal representation is 3000, exactly as in the question.