Let's solve the rounding problems step by step. We'll follow the standard rules for rounding:
Rounding Rules:
- If the digit to the right of the place you're rounding to is
5 or greater, round
up.
- If it's
less than 5, round
down.
---
Part 1: Round to the nearest ten
We look at the
ones digit (the last digit). If it’s 5 or more, round up; otherwise, round down.
1.
2219:
- Ones digit = 9 → round up
- 2219 →
2220
2.
3872:
- Ones digit = 2 → round down
- 3872 →
3870
3.
5226:
- Ones digit = 6 → round up
- 5226 →
5230
4.
9131:
- Ones digit = 1 → round down
- 9131 →
9130
5.
4552:
- Ones digit = 2 → round down
- 4552 →
4550
6.
1711:
- Ones digit = 1 → round down
- 1711 →
1710
✔ Answers (nearest ten):
1. 2220
2. 3870
3. 5230
4. 9130
5. 4550
6. 1710
---
Part 2: Round to the nearest hundred
Look at the
tens digit. If it’s 5 or more, round up; otherwise, round down.
1.
2742:
- Tens digit = 4 → round down
- 2742 →
2700
2.
2764:
- Tens digit = 6 → round up
- 2764 →
2800
3.
8097:
- Tens digit = 9 → round up
- 8097 →
8100
4.
8435:
- Tens digit = 3 → round down
- 8435 →
8400
5.
7921:
- Tens digit = 2 → round down
- 7921 →
7900
6.
7860:
- Tens digit = 6 → round up
- 7860 →
7900
✔ Answers (nearest hundred):
1. 2700
2. 2800
3. 8100
4. 8400
5. 7900
6. 7900
---
Part 3: Round to the nearest thousand
Look at the
hundreds digit. If it’s 5 or more, round up; otherwise, round down.
1.
1735:
- Hundreds digit = 7 → round up
- 1735 →
2000
2.
2114:
- Hundreds digit = 1 → round down
- 2114 →
2000
3.
8015:
- Hundreds digit = 0 → round down
- 8015 →
8000
4.
7485:
- Hundreds digit = 4 → round down
- 7485 →
7000
5.
5911:
- Hundreds digit = 9 → round up
- 5911 →
6000
6.
7820:
- Hundreds digit = 8 → round up
- 7820 →
8000
✔ Answers (nearest thousand):
1. 2000
2. 2000
3. 8000
4. 7000
5. 6000
6. 8000
---
✔ Final Answer Key:
####
Round to nearest ten:
1. 2220
2. 3870
3. 5230
4. 9130
5. 4550
6. 1710
####
Round to nearest hundred:
1. 2700
2. 2800
3. 8100
4. 8400
5. 7900
6. 7900
####
Round to nearest thousand:
1. 2000
2. 2000
3. 8000
4. 7000
5. 6000
6. 8000
Let me know if you'd like this formatted as a printable answer sheet!
Parent Tip: Review the logic above to help your child master the concept of rounding to the nearest ten and hundred worksheet.