Let's solve the problem step by step.
We are asked to
round each number to the nearest 100.
To round a number to the nearest 100:
- Look at the
tens digit (the second digit from the right).
- If the tens digit is
5 or more, round
up.
- If the tens digit is
less than 5, round
down.
---
Example:
Given:
6386 → 6400
Explanation:
- Tens digit of 6386 is
8 (from 86), which is ≥ 5 → round up.
- So, 6386 rounds to
6400.
Now let’s go through each number:
---
Row 1:
1.
7456 → tens digit is
5 → round up
→
7500
2.
2489 → tens digit is
8 → round up
→
2500
---
Row 2:
3.
7758 → tens digit is
5 → round up
→
7800
4.
5431 → tens digit is
3 → round down
→
5400
5.
2587 → tens digit is
8 → round up
→
2600
---
Row 3:
6.
2549 → tens digit is
4 → round down
→
2500
7.
3458 → tens digit is
5 → round up
→
3500
8.
4567 → tens digit is
6 → round up
→
4600
---
Row 4:
9.
5641 → tens digit is
4 → round down
→
5600
10.
3428 → tens digit is
2 → round down
→
3400
11.
5632 → tens digit is
3 → round down
→
5600
---
Row 5:
12.
8180 → tens digit is
8 → round up
→
8200
13.
9142 → tens digit is
4 → round down
→
9100
14.
1258 → tens digit is
5 → round up
→
1300
---
Row 6:
15.
4326 → tens digit is
2 → round down
→
4300
16.
4350 → tens digit is
5 → round up
→
4400
17.
6153 → tens digit is
5 → round up
→
6200
---
Row 7:
18.
4327 → tens digit is
2 → round down
→
4300
19.
6452 → tens digit is
5 → round up
→
6500
20.
4125 → tens digit is
2 → round down
→
4100
---
Row 8:
21.
1349 → tens digit is
4 → round down
→
1300
22.
9261 → tens digit is
6 → round up
→
9300
23.
2274 → tens digit is
7 → round up
→
2300
---
Row 9:
24.
9036 → tens digit is
3 → round down
→
9000
25.
9452 → tens digit is
5 → round up
→
9500
26.
1478 → tens digit is
7 → round up
→
1500
---
Row 10:
27.
4085 → tens digit is
8 → round up
→
4100
28.
9498 → tens digit is
9 → round up
→
9500
29.
3299 → tens digit is
9 → round up
→
3300
---
Final Answer Table:
| Number | Rounded |
|--------|---------|
| 6386 | 6400 |
| 7456 |
7500 |
| 2489 |
2500 |
| 7758 |
7800 |
| 5431 |
5400 |
| 2587 |
2600 |
| 2549 |
2500 |
| 3458 |
3500 |
| 4567 |
4600 |
| 5641 |
5600 |
| 3428 |
3400 |
| 5632 |
5600 |
| 8180 |
8200 |
| 9142 |
9100 |
| 1258 |
1300 |
| 4326 |
4300 |
| 4350 |
4400 |
| 6153 |
6200 |
| 4327 |
4300 |
| 6452 |
6500 |
| 4125 |
4100 |
| 1349 |
1300 |
| 9261 |
9300 |
| 2274 |
2300 |
| 9036 |
9000 |
| 9452 |
9500 |
| 1478 |
1500 |
| 4085 |
4100 |
| 9498 |
9500 |
| 3299 |
3300 |
✔ All numbers have been rounded to the nearest 100.
Let me know if you'd like this in a printable format!
Parent Tip: Review the logic above to help your child master the concept of rounding worksheet grade 3.