Questions on Decimal Rounding
Multiple choice questions for 6th grade Decimal Rounding, each based on hypothetical real-life situations, with five alternatives per question. At the end, you’ll find the answers and explanations.
Decimal Rounding – Multiple Choice Questions
1. Maria ran 4.786 kilometers in a race. What is the distance rounded to the nearest tenth?
A) 4.7
B) 4.8
C) 4.79
D) 4.78
E) 5.0
2. A watermelon weighs 3.647 kilograms. What is its weight rounded to the nearest hundredth?
A) 3.64
B) 3.65
C) 3.66
D) 3.60
E) 3.67
3. A bottle contains 2.975 liters of soda. Rounded to the nearest whole number, how many liters is that?
A) 2
B) 3
C) 4
D) 2.9
E) 2.97
4. A pencil costs $0.385. What is the price rounded to the nearest tenth?
A) $0.3
B) $0.4
C) $0.39
D) $0.38
E) $1.0
5. A truck traveled 236.428 kilometers. What is the distance rounded to the nearest hundredth?
A) 236.40
B) 236.42
C) 236.43
D) 236.44
E) 236.45
6. The temperature today is 21.876°C. What is the temperature rounded to the nearest tenth?
A) 21.8°C
B) 21.9°C
C) 21.87°C
D) 22.0°C
E) 21.88°C
7. A bottle holds 1.499 liters of water. Rounded to the nearest liter, how many liters is that?
A) 1 L
B) 2 L
C) 1.5 L
D) 1.4 L
E) 1.49 L
8. A boy spent $17.245 at the store. Rounded to the nearest dollar, how much did he spend?
A) $17
B) $16
C) $18
D) $17.2
E) $17.25
9. A runner finished a lap in 8.605 seconds. What is the time rounded to the nearest hundredth?
A) 8.60
B) 8.61
C) 8.62
D) 8.65
E) 8.70
10. A school bus traveled 58.503 kilometers. What is the distance rounded to the nearest tenth?
A) 58.5
B) 58.6
C) 58.0
D) 58.50
E) 58.51
11. Julia drank 1.206 liters of juice. What is the amount rounded to the nearest hundredth?
A) 1.20
B) 1.21
C) 1.22
D) 1.19
E) 1.23
12. A pizza is 9.987 inches in diameter. What is the diameter rounded to the nearest whole number?
A) 9
B) 10
C) 11
D) 9.9
E) 10.0
13. A bag of sugar weighs 4.451 kilograms. What is the weight rounded to the nearest tenth?
A) 4.4
B) 4.5
C) 4.45
D) 4.46
E) 4.50
14. A scientist recorded a measurement of 0.0598 meters. What is it rounded to the nearest hundredth?
A) 0.05
B) 0.06
C) 0.059
D) 0.058
E) 0.060
15. The price of a toy is $12.869. Rounded to the nearest dollar, what is the price?
A) $12
B) $13
C) $14
D) $12.9
E) $12.8
16. A river is 132.427 meters wide. What is its width rounded to the nearest hundredth?
A) 132.42
B) 132.43
C) 132.40
D) 132.44
E) 132.45
17. A player scored an average of 19.684 points per game. What is his average rounded to the nearest tenth?
A) 19.6
B) 19.7
C) 19.8
D) 20.0
E) 19.68
18. A bag of flour weighs 5.999 kilograms. Rounded to the nearest whole number, what is its weight?
A) 5
B) 6
C) 7
D) 5.9
E) 6.0
19. A computer downloads data at 3.274 megabytes per second. Rounded to the nearest tenth, what is the speed?
A) 3.2
B) 3.3
C) 3.27
D) 3.28
E) 3.4
20. A basketball is 23.505 centimeters in circumference. What is the circumference rounded to the nearest hundredth?
A) 23.50
B) 23.51
C) 23.52
D) 23.55
E) 24.00
Answers and Explanations
1. B) 4.8 → 4.786 → 8 is in the tenths → next digit is 6 (round up).
2. C) 3.65 → 3.647 → hundredth digit is 4, next is 7 (round up).
3. B) 3 → 2.975 → .9 is closest to 3.
4. B) $0.4 → 0.385 → tenths is 3, next is 8 (round up).
5. C) 236.43 → hundredth is 2, next is 8 (round up).
6. B) 21.9°C → tenths is 8, next is 7 (round up).
7. B) 2 L → 1.499 → almost 1.5, rounds to 2.
8. A) $17 → .2 rounds down.
9. B) 8.61 → hundredth is 0, next is 5 (round up).
10. A) 58.5 → tenths is 5, next is 0 (stay the same).
11. B) 1.21 → hundredth is 0, next is 6 (round up).
12. B) 10 → 9.987 rounds to 10.
13. B) 4.5 → tenths is 4, next is 5 (round up).
14. B) 0.06 → hundredth is 5, next is 9 (round up).
15. B) $13 → .8 rounds up.
16. B) 132.43 → hundredth is 2, next is 7 (round up).
17. B) 19.7 → tenths is 6, next is 8 (round up).
18. B) 6 → 5.999 → very close to 6.
19. B) 3.3 → tenths is 2, next is 7 (round up).
20. B) 23.51 → hundredth is 0, next is 5 (round up).
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