Unit Quiz
About This Quiz
This quiz covers all the concepts from the Decimals Introduction unit. Test your knowledge of decimal place value, comparing decimals, and applying decimal concepts to real-world problems.
Quiz Instructions
- Read each question carefully before answering
- Try to answer without looking at notes first
- Click each question to reveal the answer
- Keep track of how many you get correct
- Review any topics where you need more practice
Scoring Guide
- 9-10 correct: Excellent! You have mastered this unit.
- 7-8 correct: Good work! Review the questions you missed.
- 5-6 correct: You are getting there. Revisit the lessons for more practice.
- Below 5: Go back through the lessons and try again when ready.
Unit Quiz Questions
Test yourself with these 10 comprehensive questions. Click each question to reveal the answer.
Question 1: What is the place value of 8 in the number 4.38?
Answer: Hundredths. The 8 is in the second place to the right of the decimal point.
Question 2: Which decimal is greater: 0.72 or 0.8?
Answer: 0.8 is greater. Rewrite as 0.80 and compare: 0.80 > 0.72.
Question 3: Write three tenths as a decimal.
Answer: 0.3. Three tenths means 3 in the tenths place.
Question 4: Order these decimals from least to greatest: 0.4, 0.39, 0.41
Answer: 0.39, 0.4, 0.41. Rewrite 0.4 as 0.40 to compare: 0.39 < 0.40 < 0.41.
Question 5: A pen costs $1.25 and a pencil costs $0.99. Which costs more and by how much?
Answer: The pen costs more. The difference is $1.25 - $0.99 = $0.26 (26 cents more).
Question 6: True or False: 0.60 is greater than 0.6
Answer: False. 0.60 and 0.6 are equal. Trailing zeros do not change the value.
Question 7: What digit is in the tenths place of 12.59?
Answer: 5. The tenths place is the first digit after the decimal point.
Question 8: A race was won with a time of 9.8 seconds. Another runner finished in 9.85 seconds. Who was faster?
Answer: The winner (9.8 seconds) was faster. Rewrite as 9.80 and compare: 9.80 < 9.85. Lower time = faster.
Question 9: Write forty-seven hundredths as a decimal.
Answer: 0.47. "Hundredths" means two decimal places, so forty-seven hundredths = 0.47.
Question 10: A student says 0.125 > 0.2 because 125 > 2. Explain why this is wrong and give the correct answer.
Answer: This is wrong because place value matters. Rewrite 0.2 as 0.200. Compare: 200 thousandths > 125 thousandths. So 0.2 > 0.125.
Next Steps
- Review your score using the scoring guide above
- Go back to any lessons that cover topics you missed
- When you are ready, move on to the next unit
- Great job completing the Decimals Introduction unit!