Decimal Quiz Practice

1. What is 5.6 + 3.4?

a) 9.0 b) 8.8 c) 8.9

2. What is 8.7 - 2.5?

a) 6.2 b) 6.0 c) 6.1

3. If you have 4.5 liters of juice and you pour out 1.2 liters, how much juice is left?

a) 3.3 liters b) 3.2 liters c) 3.4 liters

4. Explain why 9.6 divided by 3 is equal to 3.2.

a) Each part is the same as 3.2. b) 3.2 is multiplied by 3 to get 9.6. c) Adding 3.2 three times gives 9.6.

5. You have a rectangle with a length of 6.3 cm and a width of 2.5 cm. What is the area?

a) 15.75 cm² b) 15.8 cm² c) 15.5 cm²

6. A piece of cloth costs $8.75 per meter. How much will 4 meters cost?

a) $35.00 b) $35.50 c) $34.00

7. Compare the sum of 7.2 + 3.6 with 10.5 - 1.7. Which is greater and by how much?

a) Sum of 7.2 + 3.6 is greater by 0.1 b) Sum of 7.2 + 3.6 is greater by 0.2 c) Sum of 7.2 + 3.6 is greater by 0.3

8. Determine the missing number in the sequence: 1.4, 2.8, 4.2, __, 7.0

a) 5.6 b) 5.5 c) 5.7

9. You are given two decimal numbers, 6.8 and 7.3. Which number has the greater difference from 7.0, and why?

a) 6.8 because it is 0.2 less than 7.0 b) 7.3 because it is 0.3 more than 7.0 c) 6.8 because the difference is smaller

10. Evaluate the following expression: (8.4 - 3.2) × 2. Is the result greater than 10?

a) Yes, because the result is 10.4 b) No, because the result is 9.6 c) Yes, because the result is 11.2

11. Create a decimal number that is the average of 5.4 and 7.8.

a) 6.6 b) 6.5 c) 6.7

12. Design a real-life scenario where you would need to add 3.7 and 5.2. Describe the scenario and the total amount needed.

a) Buying a toy costing $3.7 and a book costing $5.2; total is $8.9 b) Buying two toys costing $3.7 each; total is $7.4 c) Buying a drink for $5.2 and a snack for $3.7; total is $8.9

13. Solve the following problem: If a pizza costs $12.45 and you give $15.00, how much change should you get?

a) $2.55 b) $2.65 c) $2.75

14. You have $20.00 and spend $8.75. How much money do you have left?

a) $11.25 b) $11.50 c) $12.00

15. Develop a chart showing the cost of 1, 2, 3, and 4 items, each costing $3.50. Calculate the total cost for 4 items.

a) $14.00 b) $13.50 c) $14.50

16. Formulate a problem where you need to divide a decimal number by another decimal number and solve it.

a) Dividing 9.0 by 3.0 equals 3.0. b) Dividing 8.4 by 2.0 equals 4.2. c) Dividing 7.2 by 2.4 equals 3.0.

17. Create a sequence of five decimal numbers increasing by 0.5. What is the fourth number in this sequence?

a) 2.5 b) 3.0 c) 2.0

18. Develop an equation using decimals to solve for x if 4.5 + x = 8.2.

a) x = 3.7 b) x = 3.5 c) x = 3.8

19. Propose a new decimal-based math game or activity and describe its rules.

a) A game where players roll dice with decimal numbers and add them up. b) A game where players solve decimal multiplication problems to earn points. c) A game where players guess decimal numbers based on clues.

20. Design a visual representation (such as a graph or chart) showing how the total cost changes when buying 1, 2, 3, and 4 items at $5.25 each. Describe the trend observed.

a) The total cost increases linearly. b) The total cost decreases exponentially. c) The total cost remains constant.