Practice the questions of **McGraw Hill Math Grade 8 Answer Key PDF Lesson 7.1 Place Value and Rounding **to secure good marks & knowledge in the exams.

## McGraw-Hill Math Grade 8 Answer Key Lesson 7.1 Place Value and Rounding

**Exercises**

**ROUND**

**Round to the nearest whole number.**

Question 1.

48.6

Answer:

49

Explanation:

If the digit in tenth place is greater than 5 add 1 to the nearest whole number.

So, 48.6 is rounded to nearest whole number 49.

Question 2.

98.3

Answer:

98

Explanation:

If the digit in tenth place is less than 5 round down and keep the nearest whole number.

So, 98.3 is rounded to nearest whole number 98.

Question 3.

156.67

Answer:

157

Explanation:

If the digit in hundredth place is greater than 5 add 1 to the nearest whole number.

So, 156.67 is rounded to nearest whole number 157.

Question 4.

3026.92

Answer:

3027

Explanation:

If the digit in hundredth place is greater than 5 add 1 to the nearest whole number.

So, 3026.92 is rounded to nearest whole number 3027.

Question 5.

189.41233

Answer:

189

Explanation:

If the digit in tenth place is less than 5 round down and keep the nearest whole number.

So, 189.41233 is rounded to nearest whole number 189.

Question 6.

2244.66795

Answer:

2245

Explanation:

If the digit in tenth place is greater than 5 add 1 to the nearest whole number.

So, 2244.66795 is rounded to nearest whole number 2245.

Question 7.

279.99556

Answer:

280

Explanation:

If the digit in tenth place is greater than 5 add 1 to the nearest whole number.

So, 279.99556 is rounded to nearest whole number 279.99556.

Question 8.

428.5

Answer:

429

Explanation:

If the digit in tenth place is greater than 5 add 1 to the nearest whole number.

So, 428.5 is rounded to nearest whole number 4285.

**Round to the nearest tenth.**

Question 9.

124.5755

Answer:

124.6

Explanation:

If the digit in hundredth place is greater than 5 add 1 to the nearest tenth place.

So, 124.5755 is rounded to nearest tenth place 124.6

Question 10.

175.5133

Answer:

175.5

Explanation:

If the digit in hundredth place is less then 5 round down to the tenth place.

So, 175.5133 is rounded to nearest tenth place 175.5

Question 11.

349.49888

Answer:

349.5

Explanation:

If the digit in hundredth place is greater than 5 add 1 to the nearest tenth place.

So, 349.49888 is rounded to nearest tenth place 349.5

Question 12.

313.35664

Answer:

313.4

Explanation:

If the digit in hundredth place is greater than 5 add 1 to the nearest tenth place.

So, 313.35664 is rounded to nearest tenth place 313.4

Question 13.

375.77454

Answer:

375.8

Explanation:

If the digit in hundredth place is greater than 5 add 1 to the nearest tenth place.

So, 375.77454 is rounded to nearest tenth place 375.8

Question 14.

44.00913

Answer:

44.0

Explanation:

If the digit in hundredth place is less than 5 round down to the nearest tenth place.

So, 44.009133 is rounded to nearest tenth place 44.0

Question 15.

566.9943

Answer:

567.0

Explanation:

If the digit in hundredth place is greater than 5 add 1 to the nearest tenth place.

So, 566.9943 is rounded to nearest tenth place 567.0

Question 16.

61.15

Answer:

61.2

Explanation:

If the digit in hundredth place is greater than 5 round down to the nearest tenth place.

So, 61.15 is rounded to nearest tenth place 61.2

**Round to the nearest hundredth.**

Question 17.

1536.3357

Answer:

1536.34

Explanation:

If the digit in thousandth place is greater than 5 add 1 to the nearest hundredth place.

So, 1536.3357 is rounded to nearest hundredth place 1536.34

Question 18.

32.4589

Answer:

32.46

Explanation:

If the digit in thousandth place is greater than 5 add 1 to the nearest hundredth place.

So, 32.4589 is rounded to nearest hundredth place 32.46

Question 19.

118.9977

Answer:

119.00

Explanation:

If the digit in thousandth place is greater than 5 add 1 to the nearest hundredth place.

So, 118.9977 is rounded to nearest hundredth place 119.00

Question 20.

523.75776

Answer:

523.76

Explanation:

If the digit in thousandth place is greater than 5 add 1 to the nearest hundredth place.

So, 523.75776 is rounded to nearest hundredth place 523.76

Question 21.

1099.989877

Answer:

1099.99

Explanation:

If the digit in thousandth place is greater than 5 add 1 to the nearest hundredth place.

So, 1099.989877 is rounded to nearest hundredth place 1099.99

Question 22.

1.11881

Answer:

1.12

Explanation:

If the digit in thousandth place is greater than 5 add 1 to the nearest hundredth place.

So, 1.11881 is rounded to nearest hundredth place 1.12

Question 23.

33.43718

Answer:

33.44

Explanation:

If the digit in thousandth place is greater than 5 add 1 to the nearest hundredth place.

So, 33.43718 is rounded to nearest hundredth place 33.44

Question 24.

555.555

Answer:

555.56

Explanation:

If the digit in thousandth place is greater than 5 add 1 to the nearest hundredth place.

So, 555.555 is rounded to nearest hundredth place 555.56

**Round to the nearest thousandth.**

Question 25.

729.239788

Answer:

729.240

Explanation:

If the digit in ten thousandth place is greater than 5 add 1 to the nearest thousandth place.

So, 729.239788 is rounded to nearest thousandth place 729.240

Question 26.

409.13391

Answer:

409.134

Explanation:

If the digit in ten thousandth place is less than 5 round down to the nearest thousandth place.

So, 409.133391 is rounded to nearest thousandth place 409.134

Question 27.

8056.708035

Answer:

8056.709

Explanation:

If the digit in ten thousandth place is greater than 5 add 1 to the nearest thousandth place.

So, 8056.708035 is rounded to nearest thousandth place 8056.709

Question 28.

549.594959

Answer:

549.595

Explanation:

If the digit in ten thousandth place is greater than 5 add 1 to the nearest thousandth place.

So, 549.594959 is rounded to nearest thousandth place 549.595

Question 29.

99.80007

Answer:

99.800

Explanation:

If the digit in ten thousandth place is less than 5 round down to the nearest thousandth place.

So, 99.80007 is rounded to nearest thousandth place 99.800

Question 30.

177.555901

Answer:

177.556

Explanation:

If the digit in ten thousandth place is greater than 5 add 1 to the nearest thousandth place.

So, 177.555901 is rounded to nearest thousandth place 177.556

Question 31.

2012.20507

Answer:

2012.205

Explanation:

If the digit in ten thousandth place is less than 5 round down to the nearest thousandth place.

So, 2012.20507 is rounded to nearest thousandth place 2012.205

Question 32.

901.901445

Answer:

901.901

Explanation:

If the digit in ten thousandth place is less than 5 round down to the nearest thousandth place.

So, 901.901445 is rounded to nearest thousandth place 901.901