Let's solve the rounding problem step by step. We are asked to
round each number to the nearest 10 and to the
nearest 100.
---
🔷 Rules for Rounding:
-
To the nearest 10: Look at the
ones digit (the last digit).
- If it’s
5 or more, round
up.
- If it’s
less than 5, round
down.
-
To the nearest 100: Look at the
tens digit.
- If it’s
50 or more, round
up.
- If it’s
less than 50, round
down.
---
Now, let's go through each number:
---
| Number | Nearest 10 | Nearest 100 |
|--------|------------|-------------|
|
585 | → Ones digit is 5 → round up:
590 | Tens digit is 80 → 80 ≥ 50 → round up:
600 |
|
45 | → Ones digit is 5 → round up:
50 | Tens digit is 40 → 40 < 50 → round down:
0 (or
0) |
|
376 | → Ones digit is 6 → round up:
380 | Tens digit is 70 → 70 ≥ 50 → round up:
400 |
|
626 | → Ones digit is 6 → round up:
630 | Tens digit is 20 → 20 < 50 → round down:
600 |
|
776 | → Ones digit is 6 → round up:
780 | Tens digit is 70 → 70 ≥ 50 → round up:
800 |
|
183 | → Ones digit is 3 → round down:
180 | Tens digit is 80 → 80 ≥ 50 → round up:
200 |
|
114 | → Ones digit is 4 → round down:
110 | Tens digit is 10 → 10 < 50 → round down:
100 |
|
985 | → Ones digit is 5 → round up:
990 | Tens digit is 80 → 80 ≥ 50 → round up:
1000 |
|
161 | → Ones digit is 1 → round down:
160 | Tens digit is 60 → 60 ≥ 50 → round up:
200 |
|
727 | → Ones digit is 7 → round up:
730 | Tens digit is 20 → 20 < 50 → round down:
700 |
---
✔ Final Answer Table:
| numbers | nearest 10 | nearest 100 |
|--------|------------|-------------|
| 585 | 590 | 600 |
| 45 | 50 | 0 |
| 376 | 380 | 400 |
| 626 | 630 | 600 |
| 776 | 780 | 800 |
| 183 | 180 | 200 |
| 114 | 110 | 100 |
| 985 | 990 | 1000 |
| 161 | 160 | 200 |
| 727 | 730 | 700 |
---
📝 Notes:
- For
45, the nearest 100 is
0 because 45 is closer to 0 than to 100.
- For
985, rounding to nearest 100 gives
1000, since 985 is between 900 and 1000, and 85 is greater than 50 → round up.
✔ All values are correctly rounded using standard rules.
Let me know if you'd like a printable version or explanation in simpler terms!
Parent Tip: Review the logic above to help your child master the concept of rounding to 100 worksheet.
