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Let's go through the problems on the worksheet you uploaded:

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### 11. **(Lesson 15) If 2000 dimes are put into rolls of 50 dimes, how many rolls will be made?**
- **Solution:** Divide 2000 by 50:  
  \[ 2000 ÷ 50 = 40 \]
  **Answer:** 40 rolls.

### 12. **(Lesson 15) The post office sold 37-cent commemorative stamps in sheets of 25 stamps. What was the price for a sheet of stamps?**
- **Solution:** Multiply 37 cents by 25:  
  \[ 37 × 25 = 925 \text{ cents} = 9.25 \text{ dollars} \]
  **Answer:** 9.25 dollars.

### 13. **(Lesson 16) Estimate the product of 59 and 42.**
- **Solution:** Round 59 to 60 and 42 to 40, then multiply:  
  \[ 60 × 40 = 2400 \]
  **Answer:** 2400.

### 14. **(Lesson 16) Round 38,425 to the nearest thousand.**
- **Solution:** The digit in the hundreds place is 4, so round down to:  
  \[ 38,000 \]
  **Answer:** 38,000.

### 15. **(Lesson 18) What is the average of 7, 10, 10, 12, and 11?**
- **Solution:** Find the sum of the numbers and divide by 5:  
  \[ (7 + 10 + 10 + 12 + 11) ÷ 5 = 50 ÷ 5 = 10 \]
  **Answer:** 10.

### 16. **(Lesson 17) How long is this line segment?**
- **Solution:** Measure the line segment from the image (approximately 2 inches).
  **Answer:** 2 inches.

### 17. **(Lesson 10) What temperature is shown on this thermometer?**
- **Solution:** The temperature is around 10°F, according to the image.
  **Answer:** 10°F.

### 18. **(Lesson 18) Use the graph to answer the questions:**
  - **(a)** On which day did Laurie earn the fewest quiz scores?
    **Answer:** Thursday.
  - **(b)** How many answers did she have correct on that day?
    **Answer:** 8 answers correct.

### 19. **(Lesson 19) List the six whole number factors of 20.**
- **Solution:** The factors of 20 are the numbers that divide 20 exactly:  
  **Factors:** 1, 2, 4, 5, 10, 20.
  **Answer:** 1, 2, 4, 5, 10, 20.

### 20. **(Lesson 20) Find the greatest common factor (GCF) of 14 and 35.**
- **Solution:** The factors of 14 are 1, 2, 7, 14, and the factors of 35 are 1, 5, 7, 35. The GCF is 7.
  **Answer:** 7.

### 21. **(Lesson 12) Bonus: Write 25,072,600 in word form.**
- **Solution:** Twenty-five million, seventy-two thousand, six hundred.
  **Answer:** Twenty-five million, seventy-two thousand, six hundred.

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Let me know if you'd like more details on any of the solutions!

Here are five related questions to think about:
1. What would happen if you rounded 38,425 to the nearest ten thousand?
2. How would the answer change if the dimes in question 11 were divided into rolls of 100 instead of 50?
3. Can you find the least common multiple of 14 and 35?
4. If you estimated the product of 73 and 39, what would the approximate answer be?
5. How would you calculate the average of a new set of numbers: 8, 12, 9, 15, and 10?

**Tip:** When estimating products, round numbers to the nearest multiple of 10 for easier calculations.

Math worksheet with problems involving arithmetic operations, estimation, factors, averages, and more.

Solve math problems related to averages, estimation, and factors. This worksheet includes questions on rounding, finding the greatest common factor, and interpreting graphs. Suitable for students in Grades 4-6.

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