The '9' is in the "first decimal" place and the '3' is in the "second decimal" place.Rules for roundingIf the number in the second decimal place is 5 or greater then the number in the first decimal place is rounded upwards by 1.If the number in the second decimal place is 4 or less then the number in the first decimal place is left unchanged.As the problem in this case is 3.93 and the number in the second decimal place is less than 5, we end up with3.9 "correct to one decimal place" or "rounded to one decimal place".
A number with one digit after (to the right of) the decimal point is said to have one decimal place. The number can also be said to be rounded to the nearest tenth.
The third decimal place in this example is occupied by the number one: 00.001 (the one is in the thousandths place)
Estimating the number 684.575 to one decimal place gives you 684.6 which is very close.
The decimal point of a number separates the whole part of the number from the fractional part of the number. It is located between the units column and the tenths column of every number. A decimal place is one of the digits after the decimal point: The first decimal place is the first digit, which is the tenths digit The second decimal place is the second digit, which is the hundredths digit The third decimal place is the third digit, which is the thousandths digit etc. When showing or rounding to a number of decimal places there will be that number of digits after the decimal place. eg the number 5.671 has three decimal places as there are three digits after the decimal point and the second decimal place, for example, contains the digit 7.
This number, rounded to one decimal place, is 0.1
unless the number is a decimal, the number in the one's place is always the last digit. if you are using a decimal number, the one's place is the last number before the decimal. ex: 5,307 the one's place is 7 546.9 the one's place is 6
A number expressed to one decimal place (not one place decimal) is one that has a single digit after the decimal place. This is the digit in the tenths place so such a number may also be described as "rounded to the nearest tenth", or "accurate to a tenth".
The number 1.9 is already rounded to one decimal place.
The number 8.2 is already rounded to one decimal place.
Look at the number in the second decimal place. If that number is 4 or less, zero it and everything to the right of it out. If that number is 5 or higher, increase the first decimal place by one and zero everything to the right of it out.
The number 3.5 is already rounded to one decimal place.
A decimal number is one way of representing numbers where each place for a digit has a place value that is ten times that of the place to its right. Most all the numbers that you familiar with (judging from your question) will be decimal numbers. A decimal number need not be a [decimal] fraction.
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Like the metric system, the decimal is placed by 10ths. One number away from the decimal point is one-tenth. The second number away is the one-hundredth place. So, basically, it's two numbers away (to the right) of the decimal point.
8.7 is already a number with exactly one decimal place. We don't know whether or not it's correct until we know where it came from and what it represents.
146.9 The same as the number you started with!