Answer
**Part b:**
- **Nearest ten:** 36,660
- **Nearest hundred:** 36,700
- **Nearest thousand:** 37,000
**Part c:**
- **Nearest ten:** 4,798,590
- **Nearest hundred:** 4,798,600
- **Nearest thousand:** 4,799,000
**Part d:**
*(Clarification needed on the division setup.)*
Solution
Certainly! Let's go through each part of your work to ensure everything is correct, especially focusing on the rounding of numbers to the nearest ten, hundred, and thousand.
---
### **Part b**
**Problem:**
\[
\begin{array}{r}
83,\!408 \\
-46,\!753 \\
\hline
36,\!655 \\
\end{array}
\]
**Rounding:**
1. **Nearest Ten:**
- **36,655**
- Look at the **ones place (5)**: Since it's 5 or more, round **up**.
- **Rounded to the nearest ten:** **36,660**
2. **Nearest Hundred:**
- **36,655**
- Look at the **tens place (5)**: Since it's 5 or more, round **up**.
- **Rounded to the nearest hundred:** **36,700**
3. **Nearest Thousand:**
- **36,655**
- Look at the **hundreds place (6)**: Since it's 5 or more, round **up**.
- **Rounded to the nearest thousand:** **37,000**
**Your Work:**
- **Nearest ten:** 36,660 ✔️
- **Nearest hundred:** 36,700 ✔️
- **Nearest thousand:** 37,000 ✔️
**Great job!** Your rounding for part b is correct.
---
### **Part c**
**Problem:**
\[
\begin{array}{r}
37,\!489 \\
\times \quad 128 \\
\hline
4,\!797,\!632 \\
\end{array}
\]
**Clarification & Correction:**
It seems there might be a miscalculation in the multiplication. Let's verify the product:
1. **Multiplication:**
\[
37,\!489 \times 128 = 37,\!489 \times (100 + 20 + 8) = (3,\!748,\!900) + (749,\!780) + (299,\!912) = 4,\!798,\!592
\]
- **Correct Product:** **4,798,592**
**Rounding:**
1. **Nearest Ten:**
- **4,798,592**
- Look at the **ones place (2)**: Since it's less than 5, round **down**.
- **Rounded to the nearest ten:** **4,798,590**
2. **Nearest Hundred:**
- **4,798,592**
- Look at the **tens place (9)**: Since it's 5 or more, round **up**.
- **Rounded to the nearest hundred:** **4,798,600**
3. **Nearest Thousand:**
- **4,798,592**
- Look at the **hundreds place (8)**: Since it's 5 or more, round **up**.
- **Rounded to the nearest thousand:** **4,799,000**
**Your Work:**
- **Nearest ten:** 4,797,630 ❌
- **Nearest hundred:** 4,797,000 ❌
- **Nearest thousand:** 4,796,000 ❌
**Corrections Needed:**
- **Product Correction:** The correct product is **4,798,592**, not **4,797,632**.
- **Rounding Corrections:**
- **Nearest Ten:** Should be **4,798,590**
- **Nearest Hundred:** Should be **4,798,600**
- **Nearest Thousand:** Should be **4,799,000**
---
### **Part d**
**Problem:**
\[
3 \quad 9 \div 8 \quad 7 \quad 6 \quad 5 \quad 2
\]
*(Assuming this represents \(39 \div 87,\!652\))*
**Clarification:**
It's a bit unclear how the division is set up. If the problem is \(39 \div 87,\!652\), here's how you can approach it:
1. **Calculation:**
\[
39 \div 87,\!652 \approx 0.000445
\]
2. **Rounding:**
- **Nearest Ten:** Not typically applicable for numbers less than 1.
- **Nearest Hundred & Thousand:** Also not standard, but if needed, you can express it in scientific notation or decimal places.
**Alternative Interpretation:**
If you intended to divide \(87,\!652 \div 39\), here's the approach:
1. **Calculation:**
\[
87,\!652 \div 39 \approx 2,\!245.436
\]
2. **Rounding:**
- **Nearest Ten:**
- Look at the **ones place (5)**: Round **up**.
- **Rounded to the nearest ten:** **2,250**
- **Nearest Hundred:**
- Look at the **tens place (4)**: Since it's less than 5, round **down**.
- **Rounded to the nearest hundred:** **2,200**
- **Nearest Thousand:**
- Look at the **hundreds place (2)**: Since it's less than 5, round **down**.
- **Rounded to the nearest thousand:** **2,000**
**Your Work:**
*(Since part d wasn't fully solved, I'm providing the methodology above.)*
---
### **Summary**
- **Part b:** Correctly rounded.
- **Part c:** Product was incorrect; rounding was based on the incorrect product. After correcting the product, the rounding should be updated as shown.
- **Part d:** Clarification needed on the division setup. Provided solutions based on possible interpretations.
If you need further assistance with part d or any other questions, feel free to ask!