Rounding Decimals 1
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Question 1 of 4
1. Question
Round off `4673.6` to the nearest whole number.- (4674)
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Fantastic!
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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
Method OneSince we are rounding to the nearest whole number, or units `(1)`, apply the rounding rule on the tenths value, which is `6`.Since `6` is within `5-9`, add `1` to the units value, then remove any other digits to its right.`467``3``.``6` `=` `467``4` Therefore, `4673.6` rounded off to the nearest whole number is `4674`.`4674`Method TwoDraw a number line with ten parts then mark the leftmost part as `4673` and the rightmost part as `4674`
Next, mark `4673.6` within the number line, which should be the sixth part.
Then, mark the middle part, which indicates `4673.5`
For rounding off numbers, follow these rules with regards to the number line:`\text(Left of the middle mark)=\text(Rounded to the leftmost value (4673))``\text(Right of the middle mark)=\text(Rounded to the rightmost value (4674))`Since `4673.6` is to the right of the middle mark, `4673.6` will be rounded off to the rightmost value, which is `4674`.`4674` -
Question 2 of 4
2. Question
Round off `18.99` to one decimal place.- (19.0, 19)
Hint
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Nice Job!
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 `9`.Since `9` is within `5-9`, add `1` to the tenths value, then remove any other digits to its right.In this case, the tenths value will become `10`, so we will take the `0` as the tenths value and add `1` to the units value.`18.``9``9` `=` `1``9``.``0` Therefore, `18.99` rounded off to one decimal place is `19.0`.`19.0` -
Question 3 of 4
3. Question
Round off `25.753` to two decimal places.- (25.75)
Hint
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Great Work!
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 `3`.Since `3` is within `0-4`, leave the hundredths value as is, then remove any other digits to its right.`25.7``5``3` `=` `25.7``5` Therefore, `25.753` rounded off to two decimal places is `25.75`.`25.75` -
Question 4 of 4
4. Question
Round off `0.9074` to three decimal places.- (0.907)
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 three decimal places, apply the rounding rule on the ten thousandths value, which is `4`.Since `4` is within `0-4`, leave the thousandths value as is, then remove any other digits to its right.`0.90``7``4` `=` `0.90``7` Therefore, `0.9074` rounded off to three decimal places is `0.907`.`0.907`
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