Questions on Multiplication of Decimals and Whole Numbers
Multiple choice questions on Multiplication of Decimals and Whole Numbers, simulating real-world situations appropriate for Grade 6. Each question has five alternatives (A–E) and the answer key with explanations is provided at the end.Multiplication of Decimals and Whole Numbers – Questions
1. Lucas bought 3 notebooks. Each notebook costs $2.75. How much did he spend in total?
A) $6.75
B) $7.25
C) $8.25
D) $8.75
E) $9.25
2. A watermelon weighs 3.4 kg. What is the total weight of 5 watermelons?
A) 15.0 kg
B) 17.0 kg
C) 16.2 kg
D) 14.8 kg
E) 18.2 kg
3. If 1 meter of fabric costs $4.85, how much would 7 meters cost?
A) $31.45
B) $33.95
C) $34.25
D) $36.45
E) $38.95
4. A car travels 62.5 kilometers in 1 hour. How far will it travel in 6 hours?
A) 362.5 km
B) 375 km
C) 387.5 km
D) 395.5 km
E) 400 km
5. Each orange contains 1.25 mg of vitamin C. How much vitamin C is in 12 oranges?
A) 14.0 mg
B) 15.5 mg
C) 16.0 mg
D) 14.5 mg
E) 13.0 mg
6. A pen costs $1.89. How much do 9 pens cost?
A) $17.01
B) $16.91
C) $15.81
D) $18.91
E) $14.91
7. A train moves at a speed of 58.6 km/h. How far will it go in 4 hours?
A) 224.4 km
B) 234.2 km
C) 246.4 km
D) 228.8 km
E) 232.6 km
8. A box of cookies weighs 2.3 kg. How much will 8 boxes weigh?
A) 17.4 kg
B) 18.6 kg
C) 19.2 kg
D) 16.4 kg
E) 17.2 kg
9. A bottle contains 1.75 liters of juice. How much is there in 6 bottles?
A) 10.25 L
B) 10.5 L
C) 10.75 L
D) 11.25 L
E) 11.5 L
10. A worker earns $85.50 per day. How much does he earn in 5 days?
A) $417.50
B) $427.50
C) $437.50
D) $445.50
E) $455.50
11. A candle burns 0.45 cm per hour. How much will it burn in 7 hours?
A) 3.05 cm
B) 3.15 cm
C) 3.25 cm
D) 3.35 cm
E) 3.45 cm
12. A farmer harvests 12.8 kg of apples each day. How many kilograms will he collect in 10 days?
A) 128 kg
B) 120 kg
C) 124.5 kg
D) 126 kg
E) 130 kg
13. A juice box has 0.95 liters. How much juice is in 11 boxes?
A) 10.25 L
B) 10.35 L
C) 10.45 L
D) 10.55 L
E) 10.65 L
14. A child reads 5.6 pages per day. How many pages will she read in 9 days?
A) 49.4 pages
B) 50.4 pages
C) 52.4 pages
D) 54.4 pages
E) 56.4 pages
15. A balloon rises at 2.75 meters per second. How high will it be after 8 seconds?
A) 20.0 m
B) 21.5 m
C) 22.0 m
D) 22.5 m
E) 23.0 m
16. A concert ticket costs $47.80. What is the total for 3 tickets?
A) $141.20
B) $142.40
C) $143.40
D) $144.40
E) $145.20
17. A bakery uses 1.25 kg of flour per cake. How much flour is needed for 16 cakes?
A) 18.0 kg
B) 19.5 kg
C) 20.0 kg
D) 21.5 kg
E) 22.5 kg
18. A student types 32.4 words per minute. How many words in 10 minutes?
A) 320 words
B) 324 words
C) 328 words
D) 332 words
E) 336 words
19. A fish weighs 3.6 kg. What is the total weight of 7 fish?
A) 24.2 kg
B) 25.0 kg
C) 25.2 kg
D) 26.4 kg
E) 27.5 kg
20. A bag of rice weighs 4.75 kg. What’s the total weight of 9 such bags?
A) 42.75 kg
B) 43.25 kg
C) 44.25 kg
D) 45.25 kg
E) 47.75 kg
Answer Key with Explanations
1. C) 3 × 2.75 = 8.25
2. B) 5 × 3.4 = 17.0
3. A) 7 × 4.85 = 33.95
4. C) 6 × 62.5 = 375.0
5. C) 12 × 1.25 = 15.0
6. B) 9 × 1.89 = 17.01
7. A) 4 × 58.6 = 234.4
8. B) 8 × 2.3 = 18.4
9. D) 6 × 1.75 = 10.5
10. B) 5 × 85.50 = 427.5
11. B) 7 × 0.45 = 3.15
12. A) 10 × 12.8 = 128
13. E) 11 × 0.95 = 10.45
14. E) 9 × 5.6 = 50.4
15. D) 8 × 2.75 = 22.0
16. C) 3 × 47.80 = 143.4
17. C) 16 × 1.25 = 20.0
18. B) 10 × 32.4 = 324
19. D) 7 × 3.6 = 25.2
20. C) 9 × 4.75 = 42.75
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