Rounding Decimals 2
Try VividMath Premium to unlock full access
Time limit: 0
Quiz summary
0 of 3 questions completed
Questions:
- 1
- 2
- 3
Information
–
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Loading...
- 1
- 2
- 3
- Answered
- Review
-
Question 1 of 3
1. Question
Round off `31.472` to one decimal place.- (31.5)
Hint
Help VideoCorrect
Excellent!
Incorrect
If the number you are rounding is followed by numbers between:- `0 \text(to) 4:` Round the number down
- `5 \text(to) 9:` Round the number up
First, mark the decimal places to remain, as well as the digit to its right.
Since we are rounding to one decimal place, apply the rounding rule on the hundredths value, which is `7`.Since `7` is within `5-9`, add `1` to the tenths value, then remove any other digits to its right.`31.``4``7``2` `=` `31.``5` Therefore, `31.472` rounded off to one decimal place is `31.5`.`31.5` -
Question 2 of 3
2. Question
Round off `86.739` to two decimal places.- (86.74)
Hint
Help VideoCorrect
Well Done!
Incorrect
If the number you are rounding is followed by numbers between:- `0 \text(to) 4:` Round the number down
- `5 \text(to) 9:` Round the number up
First, mark the decimal places to remain, as well as the digit to its right.
Since we are rounding to two decimal places, apply the rounding rule on the thousandths value, which is `9`.Since `9` is within `5-9`, add `1` to the hundredths value, then remove any other digits to its right.`86.7``3``9` `=` `86.7``4` Therefore, `86.739` rounded off to two decimal places is `86.74`.`86.74` -
Question 3 of 3
3. Question
Round off `0.00765` to three decimal places.- (0.008)
Hint
Help VideoCorrect
Well Done!
Incorrect
If the number you are rounding is followed by numbers between:- `0 \text(to) 4:` Round the number down
- `5 \text(to) 9:` Round the number up
First, mark the decimal places to remain, as well as the digit to its right.
Since we are rounding to three decimal places, apply the rounding rule on the ten thousandths value, which is `6`.Since `6` is within `5-9`, add `1` to the thousandths value, then remove any other digits to its right.`0.00``7``6``5` `=` `0.00``8` Therefore, `0.00765` rounded off to three decimal places is `0.008`.`0.008`
Quizzes
- Decimal Place Values 1
- Decimal Place Values 2
- Expressing Decimals as a Fraction 1
- Expressing Decimals as a Fraction 2
- Expressing Decimals as a Fraction 3
- Converting Decimals Involving Money (Cents and Dollars) 1
- Converting Decimals Involving Money (Cents and Dollars) 2
- Converting Decimals Involving Money (Cents and Dollars) 3
- Add and Subtract Decimals 1
- Add and Subtract Decimals 2
- Add and Subtract Decimals 3
- Add and Subtract Decimals 4
- Multiply Decimals 1
- Multiply Decimals 2
- Multiply Decimals 3
- Divide Decimals 1
- Divide Decimals 2
- Divide Decimals 3
- Divide Decimals 4
- Converting Fractions to Decimals 1
- Converting Fractions to Decimals 2
- Converting Fractions to Decimals 3
- Rounding Whole Numbers
- Rounding Decimals 1
- Rounding Decimals 2
- Rounding Decimals 3
- Decimal Word Problems: Addition and Subtraction 1
- Decimal Word Problems: Addition and Subtraction 2
- Decimal Word Problems: Addition and Subtraction 3
- Decimal Word Problems: Multiplication 1
- Decimal Word Problems: Multiplication 2
- Decimal Word Problems: Multiplication 3
- Decimal Word Problems: Division 1
- Decimal Word Problems: Division 2