ROUNDING DECIMALS TO THE NEAREST HUNDREDTH WORKSHEET

Question 1 :

Round 5.2698 to the nearest hundredth.

Question 2 :

Round 2.354 to the nearest hundredth.

Question 3 :

Round 7.5059 to the nearest hundredth.

Question 4 :

Round 5.4973 to the nearest hundredth.

Question 5 :

Round 0.2509 to the nearest hundredth.

Question 6 :

Round 0.0074 to the nearest hundredth.

Questions 7-8 : Round each of the following numbers to the nearest hundredth :

Question 7 :

Question 8 :

Question 9 :

Find the circumference of the circle whose radius is 8 cm. Use the value of π from your calculator and round your answer to the nearest hundredth.

Question 10 :

Find the area of the circle whose radius is 12 cm. Use the value of π from your calculator and round your answer to the nearest hundredth.

Question 11 :

Daniel has been asked to round 1.472 to the nearest hundredth. His answer is 14.72 Explain Daniel’s mistake and what is the correct answer?

Question 12 :

A number has been rounded to the nearest hundredth and it is 8.52. Write down 10 different possible numbers that they could be rounded.

Answers

1. Answer :

Underline 6, the digit at the hundredths place.

5.2698

The digit to the right of the underlined digit is 9, which is greater than 5.

Then, add 1 to the digit 6 at hundredths place and drop all the digits to the right of 6.

Therefore, 5.2698 rounded to the nearest hundredths is 5.27.

2. Answer :

Underline 5, the digit at the hundredths place.

2.354

The digit to the right of the underlined digit is 4, which is less than 5.

Then, keep the digit 5 at hundredths place as it is and drop the digit 4 to the right of 5.

Therefore, 2.354 rounded to the nearest hundredth is 2.35.

3. Answer :

Underline 0, the digit at the hundredths place.

7.5059

The digit to the right of the underlined digit is 5.

Then, add 1 to the digit 0 at hundredths place and drop all the digits to the right of 0.

Therefore, 7.5059 rounded to the nearest hundredth is 7.51.

4. Answer :

Underline 9, the digit at the hundredths place.

5.4973

The digit to the right of the underlined digit is 7, which is greater than 5.

Then, add 1 to the digit 9 at hundredths place and drop all the digits to the right of 9.

Therefore, 5.4973 rounded to the nearest hundredth is 5.50.

5. Answer :

Underline 5, the digit at the hundredths place.

0.2509

The digit to the right of the underlined digit is 0, which is less than 1.

Then, keep the digit 5 at hundredths place as it is and drop all the digits to the right of 5.

Therefore, 0.2509 rounded to the nearest hundredth is 0.25.

6. Answer :

Underline 0, the digit at the hundredths place.

0.0074

The digit to the right of the underlined digit is 7, which is greater than 1.

Then, add 1 to the digit 0 at hundredths place and drop all the digits to the right of 0.

Therefore, 0.0074 rounded to the nearest hundredth is 0.01.

7. Answer :

In 5.123, the digit at the hundredths place is 2.

The digit to the right of 2 is 3, which is less than 5.

Then, keep the digit 2 at hundredths place as it is and drop the digit 3 to the right of 2.

Therefore, 5.123 rounded to the nearest hundredth is 5.12.

8. Answer :

In 7.869, the digit at the hundredths place is 6.

The digit to the right of 6 is 9, which is greater than 5.

Then, add 1 to the digit 6 at the hundredths place and drop the digit 9 to the right of 6.

Therefore, 7.869 rounded to the nearest hundredth is 7.87.

9. Answer :

Formula for circumference of a circle :

= 2πr

Substitute r = 8.

= 2π(8)

= 16π

Using calculator for the the value of π,

= 50.26548........

Underline 6, the digit at the hundredths place.

= 50.26548........

The digit to the right of the underlined digit is 5.

Then, add 1 to the digit 6 at hundredths place and drop all the digits to the right of 6.

50.26548........ rounded to the nearest hundredth is 50.27.

Therefore, the circumference of the circle is about 50.27 cm.

10. Answer :

Formula for area of a circle :

= πr²

Substitute r = 12.

= π(12)²

= 144π

Using calculator for the the value of π,

= 452.3893........

Underline 8, the digit at the hundreths place.

= 452.3893........

The digit to the right of the underlined digit is 9, which is greater than 5.

Then, add 1 to the digit 8 at hundredths place and drop all the digits to the right of 8.

452.3893........ rounded to the nearest hundredth is 452.39.

Therefore, the area of the circle is about 452.39 cm².

11. Answer :

Instead of rounding to the nearest hundredth, Daniel has moved the decimal place.

The correct answer is 1.47.

12. Answer :

8.515

8.516

8.517

8.518

8.519

8.520

8.521

8.522

8.523

8.524

Practice Questions

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