Let's solve the rounding problems step by step. We'll follow the standard rules for rounding:
-
To round to the nearest ten: 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 round to the nearest hundred: Look at the
tens digit.
- If it's
5 or more, round
up.
- If it's
less than 5, round
down.
-
To round to the nearest thousand: Look at the
hundreds digit.
- If it's
5 or more, round
up.
- If it's
less than 5, round
down.
---
Part 1: Round to the nearest ten
1.
2219 → Look at the ones digit:
9 → ≥ 5 → Round up
→ 2220
2.
3872 → Ones digit:
2 → < 5 → Round down
→ 3870
3.
5226 → Ones digit:
6 → ≥ 5 → Round up
→ 5230
4.
9131 → Ones digit:
1 → < 5 → Round down
→ 9130
5.
4552 → Ones digit:
2 → < 5 → Round down
→ 4550
6.
1711 → Ones digit:
1 → < 5 → Round down
→ 1710
✔ Answers (nearest ten):
1. 2220
2. 3870
3. 5230
4. 9130
5. 4550
6. 1710
---
Part 2: Round to the nearest hundred
1.
2742 → Tens digit:
4 → < 5 → Round down
→ 2700
2.
2764 → Tens digit:
6 → ≥ 5 → Round up
→ 2800
3.
8097 → Tens digit:
9 → ≥ 5 → Round up
→ 8100
4.
8435 → Tens digit:
3 → < 5 → Round down
→ 8400
5.
7921 → Tens digit:
2 → < 5 → Round down
→ 7900
6.
7860 → Tens digit:
6 → ≥ 5 → Round up
→ 7900
✔ Answers (nearest hundred):
1. 2700
2. 2800
3. 8100
4. 8400
5. 7900
6. 7900
---
Part 3: Round to the nearest thousand
1.
1735 → Hundreds digit:
7 → ≥ 5 → Round up
→ 2000
2.
2114 → Hundreds digit:
1 → < 5 → Round down
→ 2000
3.
8015 → Hundreds digit:
0 → < 5 → Round down
→ 8000
4.
7485 → Hundreds digit:
4 → < 5 → Round down
→ 7000
5.
5911 → Hundreds digit:
9 → ≥ 5 → Round up
→ 6000
6.
7820 → Hundreds digit:
8 → ≥ 5 → Round up
→ 8000
✔ Answers (nearest thousand):
1. 2000
2. 2000
3. 8000
4. 7000
5. 6000
6. 8000
---
✔ Final Answer Key:
####
Round to the nearest ten:
1. 2220
2. 3870
3. 5230
4. 9130
5. 4550
6. 1710
####
Round to the nearest hundred:
1. 2700
2. 2800
3. 8100
4. 8400
5. 7900
6. 7900
####
Round to the 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 off worksheet.
