5 Free Math Worksheets Third Grade 3 Place Value and Rounding ... - Free Printable

Problem Overview:

The task involves rounding numbers to the nearest 100. Rounding to the nearest 100 means determining whether a number is closer to the lower or higher multiple of 100 based on its tens digit:
- If the tens digit is 5 or greater, round up to the next hundred.
- If the tens digit is less than 5, round down to the previous hundred.

Step-by-Step Solution:

#### Part 1: Round these numbers to the nearest 100
We will round each number individually:

1. 936: The tens digit is 3 (less than 5), so round down to 900.
- Answer: 900

2. 844: The tens digit is 4 (less than 5), so round down to 800.
- Answer: 800

3. 1081: The tens digit is 8 (5 or greater), so round up to 1100.
- Answer: 1100

4. 363: The tens digit is 6 (5 or greater), so round up to 400.
- Answer: 400

5. 1425: The tens digit is 2 (less than 5), so round down to 1400.
- Answer: 1400

6. 793: The tens digit is 9 (5 or greater), so round up to 800.
- Answer: 800

7. 1138: The tens digit is 3 (less than 5), so round down to 1100.
- Answer: 1100

8. 1738: The tens digit is 3 (less than 5), so round down to 1700.
- Answer: 1700

9. 1264: The tens digit is 6 (5 or greater), so round up to 1300.
- Answer: 1300

10. 865: The tens digit is 6 (5 or greater), so round up to 900.
- Answer: 900

11. 956: The tens digit is 5 (5 or greater), so round up to 1000.
- Answer: 1000

12. 1247: The tens digit is 4 (less than 5), so round down to 1200.
- Answer: 1200

13. 4137: The tens digit is 3 (less than 5), so round down to 4100.
- Answer: 4100

14. 3270: The tens digit is 7 (5 or greater), so round up to 3300.
- Answer: 3300

15. 4520: The tens digit is 2 (less than 5), so round down to 4500.
- Answer: 4500

16. 1783: The tens digit is 8 (5 or greater), so round up to 1800.
- Answer: 1800

17. 9073: The tens digit is 7 (5 or greater), so round up to 9100.
- Answer: 9100

18. 1629: The tens digit is 2 (less than 5), so round down to 1600.
- Answer: 1600

19. 1266: The tens digit is 6 (5 or greater), so round up to 1300.
- Answer: 1300

20. 9409: The tens digit is 0 (less than 5), so round down to 9400.
- Answer: 9400

21. 836: The tens digit is 3 (less than 5), so round down to 800.
- Answer: 800

22. 4490: The tens digit is 9 (5 or greater), so round up to 4500.
- Answer: 4500

23. 7338: The tens digit is 3 (less than 5), so round down to 7300.
- Answer: 7300

24. 5055: The tens digit is 5 (5 or greater), so round up to 5100.
- Answer: 5100

#### Final Answers for Part 1:
1. 900
2. 800
3. 1100
4. 400
5. 1400
6. 800
7. 1100
8. 1700
9. 1300
10. 900
11. 1000
12. 1200
13. 4100
14. 3300
15. 4500
16. 1800
17. 9100
18. 1600
19. 1300
20. 9400
21. 800
22. 4500
23. 7300
24. 5100

---

#### Part 2: Draw an arrow to match each number to its nearest 100
We will match each number to its nearest hundred:

- 1181: The tens digit is 8 (5 or greater), so round up to 1200.
- 837: The tens digit is 3 (less than 5), so round down to 800.
- 1426: The tens digit is 2 (less than 5), so round down to 1400.
- 1291: The tens digit is 9 (5 or greater), so round up to 1300.
- 964: The tens digit is 6 (5 or greater), so round up to 1000.
- 853: The tens digit is 5 (5 or greater), so round up to 900.
- 738: The tens digit is 3 (less than 5), so round down to 700.
- 1454: The tens digit is 5 (5 or greater), so round up to 1500.
- 1308: The tens digit is 0 (less than 5), so round down to 1300.

#### Final Matches:
- 1181 → 1200
- 837 → 800
- 1426 → 1400
- 1291 → 1300
- 964 → 1000
- 853 → 900
- 738 → 700
- 1454 → 1500
- 1308 → 1300

---

Final Answer:

Part 1:
\[
\boxed{
\begin{array}{lll}
1) & 900 & 2) & 800 & 3) & 1100 \\
4) & 400 & 5) & 1400 & 6) & 800 \\
7) & 1100 & 8) & 1700 & 9) & 1300 \\
10) & 900 & 11) & 1000 & 12) & 1200 \\
13) & 4100 & 14) & 3300 & 15) & 4500 \\
16) & 1800 & 17) & 9100 & 18) & 1600 \\
19) & 1300 & 20) & 9400 & 21) & 800 \\
22) & 4500 & 23) & 7300 & 24) & 5100 \\
\end{array}
}
\]

Part 2:
\[
\boxed{
\begin{array}{ll}
1181 \rightarrow 1200 & 853 \rightarrow 900 \\
837 \rightarrow 800 & 738 \rightarrow 700 \\
1426 \rightarrow 1400 & 1454 \rightarrow 1500 \\
1291 \rightarrow 1300 & 1308 \rightarrow 1300 \\
964 \rightarrow 1000 & \\
\end{array}
}
\]