Practice with the help of Spectrum Math Grade 5 Answer Key Chapter 2 Lesson 2.9 Rounding to the Nearest Whole Number regularly and improve your accuracy in solving questions.
Spectrum Math Grade 5 Chapter 2 Lesson 2.9 Rounding to the Nearest Whole Number Answers Key
Round 15.897 to the nearest whole number.
Look at the tenths digit. 15.897
8 is greater than or equal to 5, so round 5 to 6 in the ones place.
Round 234.054 to the nearest whole number.
Look at the tenths digit. 234.054
0 is less than 5, so keep the in the ones place.
Round each to the nearest whole number.
Question 1.
a. 6.421
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Answer:
6
Explanation:
Round 6.421 to the nearest whole number.
Look at the tenths digit.
4 is less than 5, so keep the same number in the ones place.
Therefore, 6.421 is rounded to 6.
b. 5.882
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Answer:
6
Explanation:
Round 5.882 to the nearest whole number.
Look at the tenths digit.
8 is greater than 5, so round 5 to 6 in the ones place.
Therefore, 5.882 is rounded to 6.
c. 19.235
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Answer:
19
Explanation:
Round 19.235 to the nearest whole number.
Look at the tenths digit.
2 is less than 5, so keep the same number in the ones place.
Therefore, 19.235 is rounded to 19.
d. 2.371
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Answer:
2
Explanation:
Round 2.371 to the nearest whole number.
Look at the tenths digit.
3 is less than 5, so keep the same number in the ones place.
Therefore, 2.371 is rounded to 2.
Question 2.
a. 45.288
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Answer:
45
Explanation:
Round 45.288 to the nearest whole number.
Look at the tenths digit.
2 is less than 5, so keep the same number in the ones place.
Therefore, 45.288 is rounded to 45.
b. 97.5
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Answer:
98
Explanation:
Round 97.5 to the nearest whole number.
Look at the tenths digit.
5 is greater than or equal to 5, so round 7 to 8 in the ones place.
Therefore, 97.5 is rounded to 98.
c. 12.003
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Answer:
12
Explanation:
Round 12.003 to the nearest whole number.
Look at the tenths digit.
0 is less than 5, so keep the same number in the ones place.
Therefore, 12.003 is rounded to 12.
d. 72.71
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Answer:
73
Explanation:
Round 72.71 to the nearest whole number.
Look at the tenths digit.
7 is greater than 5, so round 2 to 3 in the ones place.
Therefore, 72.71 is rounded to 73.
Question 3.
a. 13.936
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Answer:
14
Explanation:
Round 13.936 to the nearest whole number.
Look at the tenths digit.
9 is greater than 5, so round 3 to 4 in the ones place.
Therefore, 13.936 is rounded to 14.
b. 8.42
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Answer:
8
Explanation:
Round 8.42 to the nearest whole number.
Look at the tenths digit.
4 is less than 5, so keep the same number in the ones place.
Therefore, 8.42 is rounded to 8.
c. 1.100
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Answer:
1
Explanation:
Round 1.100 to the nearest whole number.
Look at the tenths digit.
1 is less than 5, so there is no change of number in the ones place.
Therefore, 1.100 is rounded to 1.
d. 65.39
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Answer:
65
Explanation:
Round 65.39 to the nearest whole number.
Look at the tenths digit.
3 is less than 5, so there is no change of number in the ones place.
Therefore, 65.39 is rounded to 65.
Question 4.
a. 98.55
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Answer:
99
Explanation:
Round 98.55 to the nearest whole number.
Look at the tenths digit.
5 is greater than or equal to 5, so round 8 to 9 in the ones place.
Therefore, 98.55 is rounded to 99.
b. 269.57
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Answer:
270
Explanation:
Round 269.57 to the nearest whole number.
Look at the tenths digit.
5 is greater than or equal to 5, so round 9 to 10 in the ones place.
Therefore, 269.57 is rounded to 270.
c. 14.369
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Answer:
14
Explanation:
Round 14.369 to the nearest whole number.
Look at the tenths digit.
3 is less than 5, so there is no change of number in the ones place.
Therefore, 14.369 is rounded to 14.
d. 23.09
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Answer:
23
Explanation:
Round 23.09 to the nearest whole number.
Look at the tenths digit.
0 is less than 5, so there is no change of number in the ones place.
Therefore, 23.09 is rounded to 23.
Question 5.
a. 95.645
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Answer:
96
Explanation:
Round 95.645 to the nearest whole number.
Look at the tenths digit.
6 is greater than 5, so round 5 to 6 in the ones place.
Therefore, 95.645 is rounded to 96.
b. 8.67
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Answer:
9
Explanation:
Round 8.67 to the nearest whole number.
Look at the tenths digit.
6 is greater than 5, so round 8 to 9 in the ones place.
Therefore, 8.67 is rounded to 9.
c. 99.198
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Answer:
99
Explanation:
Round 99.198 to the nearest whole number.
Look at the tenths digit.
1 is less than 5, so there is no change of number in the ones place.
Therefore, 99.198 is rounded to 99.
d. 51.70
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Answer:
52
Explanation:
Round 51.70 to the nearest whole number.
Look at the tenths digit.
7 is greater than 5, so round 1 to 2 in the ones place.
Therefore, 51.70 is rounded to 52.
Question 6.
a. 29.98
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Answer:
30
Explanation:
Round 29.98 to the nearest whole number.
Look at the tenths digit.
9 is greater than 5, so round 9 to 10 in the ones place.
Therefore, 29.98 is rounded to 30.
b. 98.4
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Answer:
98
Explanation:
Round 98.4 to the nearest whole number.
Look at the tenths digit.
4 is less than 5, so there is no change of number in the ones place.
Therefore, 98.4 is rounded to 98.
c. 33.333
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Answer:
33
Explanation:
Round 33.333 to the nearest whole number.
Look at the tenths digit.
3 is less than 5, so there is no change of number in the ones place.
Therefore, 33.333 is rounded to 3.
d. 67.67
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Answer:
68
Explanation:
Round 67.67 to the nearest whole number.
Look at the tenths digit.
6 is greater than 5, so round 7 to 8 in the ones place.
Therefore, 67.67 is rounded to 68.