Math worksheet for estimating sums and differences by rounding to the nearest thousand.
Worksheet titled "Best Estimate of Thousands" with eight multiple-choice questions on estimating sums and differences by rounding to the nearest thousand.
GIF
578×818
30.6 KB
Free · Personal Use
Quality Assured by Worksheets Library Team
Reviewed for educational accuracy and age-appropriateness
ID: #886260
⭐
Show Answer Key & Explanations
Step-by-step solution for: Printable primary math worksheet for math grades 1 to 6 based on ...
▼
Show Answer Key & Explanations
Step-by-step solution for: Printable primary math worksheet for math grades 1 to 6 based on ...
To solve the problems, we need to estimate the results of the given arithmetic operations by rounding each number to the nearest thousand and then performing the calculations. Let's go through each problem step by step.
What is the best estimate of 2,189 plus 1,763?
1. Round 2,189 to the nearest thousand:
- 2,189 is closer to 2,000 than to 3,000.
- Rounded value: 2,000
2. Round 1,763 to the nearest thousand:
- 1,763 is closer to 2,000 than to 1,000.
- Rounded value: 2,000
3. Add the rounded values:
- 2,000 + 2,000 = 4,000
Answer: B. 4,000
---
What is the best estimate of 6,005 minus 2,400?
1. Round 6,005 to the nearest thousand:
- 6,005 is closer to 6,000 than to 7,000.
- Rounded value: 6,000
2. Round 2,400 to the nearest thousand:
- 2,400 is closer to 2,000 than to 3,000.
- Rounded value: 2,000
3. Subtract the rounded values:
- 6,000 - 2,000 = 4,000
Answer: C. 4,000
---
What is the best estimate of 2,567 plus 5,609?
1. Round 2,567 to the nearest thousand:
- 2,567 is closer to 3,000 than to 2,000.
- Rounded value: 3,000
2. Round 5,609 to the nearest thousand:
- 5,609 is closer to 6,000 than to 5,000.
- Rounded value: 6,000
3. Add the rounded values:
- 3,000 + 6,000 = 9,000
Answer: C. 9,000
---
What is the best estimate of 5,800 plus 3,245?
1. Round 5,800 to the nearest thousand:
- 5,800 is closer to 6,000 than to 5,000.
- Rounded value: 6,000
2. Round 3,245 to the nearest thousand:
- 3,245 is closer to 3,000 than to 4,000.
- Rounded value: 3,000
3. Add the rounded values:
- 6,000 + 3,000 = 9,000
Answer: A. 9,000
---
What is the best estimate of 6,988 minus 4,004?
1. Round 6,988 to the nearest thousand:
- 6,988 is closer to 7,000 than to 6,000.
- Rounded value: 7,000
2. Round 4,004 to the nearest thousand:
- 4,004 is closer to 4,000 than to 5,000.
- Rounded value: 4,000
3. Subtract the rounded values:
- 7,000 - 4,000 = 3,000
Answer: D. 3,000
---
What is the best estimate of 9,500 minus 1,245?
1. Round 9,500 to the nearest thousand:
- 9,500 is closer to 10,000 than to 9,000.
- Rounded value: 10,000
2. Round 1,245 to the nearest thousand:
- 1,245 is closer to 1,000 than to 2,000.
- Rounded value: 1,000
3. Subtract the rounded values:
- 10,000 - 1,000 = 9,000
Answer: B. 9,000
---
What is the best estimate of 2,097 plus 2,887?
1. Round 2,097 to the nearest thousand:
- 2,097 is closer to 2,000 than to 3,000.
- Rounded value: 2,000
2. Round 2,887 to the nearest thousand:
- 2,887 is closer to 3,000 than to 2,000.
- Rounded value: 3,000
3. Add the rounded values:
- 2,000 + 3,000 = 5,000
Answer: A. 5,000
---
What is the best estimate of 8,206 plus 1,499?
1. Round 8,206 to the nearest thousand:
- 8,206 is closer to 8,000 than to 9,000.
- Rounded value: 8,000
2. Round 1,499 to the nearest thousand:
- 1,499 is closer to 1,000 than to 2,000.
- Rounded value: 1,000
3. Add the rounded values:
- 8,000 + 1,000 = 9,000
Answer: D. 9,000
---
1. B. 4,000
2. C. 4,000
3. C. 9,000
4. A. 9,000
5. D. 3,000
6. B. 9,000
7. A. 5,000
8. D. 9,000
Boxed Answer:
\[
\boxed{B, C, C, A, D, B, A, D}
\]
Problem 1:
What is the best estimate of 2,189 plus 1,763?
1. Round 2,189 to the nearest thousand:
- 2,189 is closer to 2,000 than to 3,000.
- Rounded value: 2,000
2. Round 1,763 to the nearest thousand:
- 1,763 is closer to 2,000 than to 1,000.
- Rounded value: 2,000
3. Add the rounded values:
- 2,000 + 2,000 = 4,000
Answer: B. 4,000
---
Problem 2:
What is the best estimate of 6,005 minus 2,400?
1. Round 6,005 to the nearest thousand:
- 6,005 is closer to 6,000 than to 7,000.
- Rounded value: 6,000
2. Round 2,400 to the nearest thousand:
- 2,400 is closer to 2,000 than to 3,000.
- Rounded value: 2,000
3. Subtract the rounded values:
- 6,000 - 2,000 = 4,000
Answer: C. 4,000
---
Problem 3:
What is the best estimate of 2,567 plus 5,609?
1. Round 2,567 to the nearest thousand:
- 2,567 is closer to 3,000 than to 2,000.
- Rounded value: 3,000
2. Round 5,609 to the nearest thousand:
- 5,609 is closer to 6,000 than to 5,000.
- Rounded value: 6,000
3. Add the rounded values:
- 3,000 + 6,000 = 9,000
Answer: C. 9,000
---
Problem 4:
What is the best estimate of 5,800 plus 3,245?
1. Round 5,800 to the nearest thousand:
- 5,800 is closer to 6,000 than to 5,000.
- Rounded value: 6,000
2. Round 3,245 to the nearest thousand:
- 3,245 is closer to 3,000 than to 4,000.
- Rounded value: 3,000
3. Add the rounded values:
- 6,000 + 3,000 = 9,000
Answer: A. 9,000
---
Problem 5:
What is the best estimate of 6,988 minus 4,004?
1. Round 6,988 to the nearest thousand:
- 6,988 is closer to 7,000 than to 6,000.
- Rounded value: 7,000
2. Round 4,004 to the nearest thousand:
- 4,004 is closer to 4,000 than to 5,000.
- Rounded value: 4,000
3. Subtract the rounded values:
- 7,000 - 4,000 = 3,000
Answer: D. 3,000
---
Problem 6:
What is the best estimate of 9,500 minus 1,245?
1. Round 9,500 to the nearest thousand:
- 9,500 is closer to 10,000 than to 9,000.
- Rounded value: 10,000
2. Round 1,245 to the nearest thousand:
- 1,245 is closer to 1,000 than to 2,000.
- Rounded value: 1,000
3. Subtract the rounded values:
- 10,000 - 1,000 = 9,000
Answer: B. 9,000
---
Problem 7:
What is the best estimate of 2,097 plus 2,887?
1. Round 2,097 to the nearest thousand:
- 2,097 is closer to 2,000 than to 3,000.
- Rounded value: 2,000
2. Round 2,887 to the nearest thousand:
- 2,887 is closer to 3,000 than to 2,000.
- Rounded value: 3,000
3. Add the rounded values:
- 2,000 + 3,000 = 5,000
Answer: A. 5,000
---
Problem 8:
What is the best estimate of 8,206 plus 1,499?
1. Round 8,206 to the nearest thousand:
- 8,206 is closer to 8,000 than to 9,000.
- Rounded value: 8,000
2. Round 1,499 to the nearest thousand:
- 1,499 is closer to 1,000 than to 2,000.
- Rounded value: 1,000
3. Add the rounded values:
- 8,000 + 1,000 = 9,000
Answer: D. 9,000
---
Final Answers:
1. B. 4,000
2. C. 4,000
3. C. 9,000
4. A. 9,000
5. D. 3,000
6. B. 9,000
7. A. 5,000
8. D. 9,000
Boxed Answer:
\[
\boxed{B, C, C, A, D, B, A, D}
\]
Parent Tip: Review the logic above to help your child master the concept of free printable estimation worksheet.
