Number DigitDecimal in the tenths place
-310.2 in Words
-310.2 is a negative terminating decimal. It has 1 decimal place, and its final digit is in the tenths place.
Direct Answer
-310.2 in words is negative three hundred ten point two.
-310.2 Place-Value Breakdown
The digits 3, 1, and 0 form the whole-number part, while 2 in the tenth place.
| Part | Digit | Place | Digit value |
|---|---|---|---|
| Whole part | 3 | hundreds | 300 |
| Whole part | 1 | tens | 10 |
| Whole part | 0 | ones | 0 |
| Decimal part | 2 | tenth | 2/10 |
What Kind of Decimal Is -310.2?
-310.2 is a negative terminating decimal. It is written to the tenths place.
Expanded Form of -310.2
-310.2 = -(300 + 10 + 2/10)
-310.2 = -(310 + 2/10)
-310.2 = -310 1/5
The final nonzero digit is in the tenths place, so its value is expressed with a denominator of 10.
How -310.2 Simplifies to -1551/5
-310.2 = -3102/10
The greatest common divisor of 3102 and 10 is 2.
-3102 ÷ 2 = -1551
10 ÷ 2 = 5
Therefore, -3102/10 = -1551/5.
As a mixed fraction, the value is -310 1/5.
-310.2 as a Percentage
To convert -310.2 to a percentage, multiply it by 100.
-310.2 × 100 = -31020
Therefore, -310.2 = -31020%.
Why -310.2 Is Written to the Tenths Place
One digit follows the decimal point, so that digit counts tenths. In -310.2, the final digit 2 represents 2/10.
A Familiar Fraction Equivalent
The reduced form -1551/5 is a commonly used fraction. The decimal form is convenient for calculation, while the fraction shows the exact part-to-whole relationship.
Whole Part and Fractional Part
This mixed decimal combines the whole part 310 with the fractional part 2/10. In place-value words, "and" marks that boundary.
How the Negative Sign Changes the Reading
Say "negative" once before the complete word form. The sign changes the direction and value, but it does not change the decimal places or the fraction-reduction steps.
-310.2 Compared with Similar Decimals
| Decimal | Spoken form | Place-value form | Fraction | Percentage | Relationship |
|---|---|---|---|---|---|
| -31.02 | negative thirty-one point zero two | negative thirty-one and two hundredths | -1551/50 | -3102% | one tenth of -310.2 |
| -310.2 | negative three hundred ten point two | negative three hundred ten and two tenths | -1551/5 | -31020% | current value |
| -310.20 | negative three hundred ten point two zero | negative three hundred ten and twenty hundredths | -1551/5 | -31020% | same numerical value, written to the hundredths place |
| -3102.0 | negative three thousand one hundred two point zero | negative three thousand one hundred two | -3102 | -310200% | ten times -310.2 |
Quick Practice
How is -310.2 read digit by digit?
Negative three hundred ten point two.
What is the place-value word form of -310.2?
Negative three hundred ten and two tenths.
What fraction is -310.2 in lowest terms?
-1551/5.
What percentage is equal to -310.2?
-31020%.
What is the absolute value of -310.2?
310.2.
Between which whole numbers does -310.2 lie?
Between -311 and -310.
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Frequently Asked Questions
How do you write -310.2 in words?
-310.2 in words is negative three hundred ten point two.
Why is -310.2 called negative three hundred ten and two tenths?
There are 1 digits after the point, so the fractional part is expressed in tenths. Read the complete value as negative three hundred ten and two tenths.
What fraction is -310.2?
-310.2 is -3102/10 exactly and -1551/5 in lowest terms.
Can -3102/10 be simplified?
Yes. Divide its numerator and denominator by 2 to get -1551/5.
What percentage is -310.2?
-310.2 is equal to -31020%.
Is -310.2 the same as -310.20?
Yes. -310.2 and -310.20 have the same numerical value. However, -310.2 is written to the tenths place, while -310.20 is written to the hundredths place and may communicate greater recorded precision.
Is -310.2 larger than -31.02?
No. Negative values reverse the comparison; -310.2 is ten times the value of -31.02.
What type of decimal is -310.2?
-310.2 is a negative terminating decimal. It is written to 1 decimal place and represents negative three hundred ten and two tenths.