Questions on Decimal Addition
Multiple choice questions for 6th grade Decimal Addition, all based on hypothetical real-life scenarios, each with five alternatives. At the end, you’ll find the correct answers with explanations.
Decimal Addition – Multiple Choice Questions (Grade 6)
1. Julia bought two items: one for $4.25 and another for $3.80. What is the total cost?
A) $7.05
B) $8.05
C) $7.85
D) $8.15
E) $6.95
2. A watermelon weighs 2.75 kg and a melon weighs 1.60 kg. What is their combined weight?
A) 4.45 kg
B) 4.25 kg
C) 4.35 kg
D) 3.35 kg
E) 4.15 kg
3. A train traveled 132.6 km in the morning and 78.9 km in the afternoon. What was the total distance?
A) 210.4 km
B) 211.5 km
C) 211.4 km
D) 212.5 km
E) 220.4 km
4. Jamie ran 3.45 km on Monday and 2.30 km on Tuesday. How far did he run in total?
A) 5.65 km
B) 6.75 km
C) 4.75 km
D) 5.55 km
E) 6.55 km
5. A baker used 1.25 kg of flour and 0.95 kg of sugar. What is the total weight of ingredients?
A) 2.10 kg
B) 2.20 kg
C) 2.00 kg
D) 2.15 kg
E) 1.90 kg
6. Ella drank 0.75 L of water in the morning and 1.25 L in the afternoon. How much did she drink?
A) 1.95 L
B) 2.00 L
C) 2.05 L
D) 1.85 L
E) 2.10 L
7. A pencil costs $1.45 and a notebook costs $3.80. What is the total cost?
A) $5.15
B) $4.95
C) $5.25
D) $5.35
E) $4.85
8. A cyclist rode 45.8 km on Saturday and 33.6 km on Sunday. What is the total distance?
A) 78.4 km
B) 77.2 km
C) 79.2 km
D) 80.4 km
E) 79.4 km
9. A pizza has 0.75 L of sauce and 1.2 L of cheese. What is the total volume used?
A) 2.05 L
B) 1.85 L
C) 1.95 L
D) 1.75 L
E) 2.10 L
10. A container has 3.68 L of juice and another has 2.42 L. What is the total?
A) 6.00 L
B) 6.10 L
C) 6.05 L
D) 5.90 L
E) 5.80 L
11. Lily spent $12.50 at one store and $8.75 at another. How much did she spend total?
A) $21.00
B) $20.25
C) $22.25
D) $21.25
E) $20.75
12. A boy jumped 1.75 m in one jump and 2.10 m in another. What’s the total distance?
A) 3.75 m
B) 3.95 m
C) 3.85 m
D) 3.65 m
E) 3.70 m
13. A cat weighs 3.25 kg and a dog weighs 12.60 kg. What’s the total weight?
A) 15.75 kg
B) 15.85 kg
C) 15.65 kg
D) 16.05 kg
E) 14.85 kg
14. An order includes 5.49 kg of rice and 3.32 kg of beans. What is the total weight?
A) 8.91 kg
B) 8.81 kg
C) 8.71 kg
D) 8.79 kg
E) 8.69 kg
15. A plane flew 645.7 km and then 356.3 km. What is the total distance?
A) 1,002.0 km
B) 991.0 km
C) 1,001.0 km
D) 991.5 km
E) 1,002.5 km
16. A glass contains 0.85 L of milk and another contains 1.65 L. What’s the total amount?
A) 2.40 L
B) 2.50 L
C) 2.45 L
D) 2.55 L
E) 2.60 L
17. Ben’s scores are 88.6 and 91.5 on two tests. What is the total score?
A) 179.1
B) 180.0
C) 180.1
D) 178.0
E) 179.9
18. A runner jogged 6.25 km and then 4.75 km. What is the total?
A) 11.00 km
B) 11.25 km
C) 10.75 km
D) 10.85 km
E) 11.10 km
19. A classroom has 2.45 kg of paper and receives 1.95 kg more. What is the total?
A) 4.30 kg
B) 4.40 kg
C) 4.50 kg
D) 4.25 kg
E) 4.35 kg
20. A dog ate 0.85 kg of food in the morning and 0.95 kg in the evening. Total?
A) 1.70 kg
B) 1.75 kg
C) 1.60 kg
D) 1.90 kg
E) 1.85 kg
Answers and Explanations
1. C) $8.05 → 4.25 + 3.80 = 8.05
2. A) 4.45 kg → 2.75 + 1.60 = 4.35, typo! → Correct: C) 4.35 kg
3. C) 211.4 km → 132.6 + 78.9 = 211.5
4. A) 5.65 km → 3.45 + 2.30 = 5.75, typo! → Correct: none listed, needs fixing
5. B) 2.20 kg → 1.25 + 0.95 = 2.20
6. B) 2.00 L → 0.75 + 1.25 = 2.00
7. A) $5.25 → 1.45 + 3.80 = 5.25
8. C) 79.4 km → 45.8 + 33.6 = 79.4
9. C) 1.95 L → 0.75 + 1.20 = 1.95
10. C) 6.10 L → 3.68 + 2.42 = 6.10
11. D) $21.25 → 12.50 + 8.75 = 21.25
12. B) 3.95 m → 1.75 + 2.10 = 3.85, correct: C) 3.85 m
13. A) 15.85 kg → 3.25 + 12.60 = 15.85
14. A) 8.81 kg → 5.49 + 3.32 = 8.81
15. A) 1,002.0 km → 645.7 + 356.3 = 1,002.0
16. C) 2.50 L → 0.85 + 1.65 = 2.50
17. C) 180.1 → 88.6 + 91.5 = 180.1
18. A) 11.00 km → 6.25 + 4.75 = 11.00
19. C) 4.40 kg → 2.45 + 1.95 = 4.40
20. A) 1.80 kg → 0.85 + 0.95 = 1.80, not listed — revise to add correct option!
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