Rounding Whole Numbers Worksheets | 4th Grade Place Value - Free Printable

Let’s go through each section of the worksheet step by step.

---

Section 1: Round each number to the tens place.

Rule: Look at the digit in the ones place (rightmost).
- If it’s 0–4, round down (keep the tens digit same, change ones to 0).
- If it’s 5–9, round up (add 1 to tens digit, change ones to 0).

1. 57 → ones digit is 7 → round up → 60 ✔ (already filled)
2. 83 → ones digit is 3 → round down → 80
3. 75 → ones digit is 5 → round up → 80
4. 22 → ones digit is 2 → round down → 20
5. 39 → ones digit is 9 → round up → 40

6. 64 → ones digit is 4 → round down → 60
7. 45 → ones digit is 5 → round up → 50
8. 36 → ones digit is 6 → round up → 40
9. 53 → ones digit is 3 → round down → 50
10. 78 → ones digit is 8 → round up → 80

11. 29 → ones digit is 9 → round up → 30
12. 31 → ones digit is 1 → round down → 30
13. 84 → ones digit is 4 → round down → 80
14. 65 → ones digit is 5 → round up → 70
15. 92 → ones digit is 2 → round down → 90

---

Section 2: Round each number to the hundreds place.

Rule: Look at the digit in the tens place.
- If it’s 0–4, round down (keep hundreds digit, make tens and ones zero).
- If it’s 5–9, round up (add 1 to hundreds digit, make tens and ones zero).

4. 284 → tens digit is 8 → round up → 300 ✔ (already filled)
5. 765 → tens digit is 6 → round up → 800
6. 143 → tens digit is 4 → round down → 100
7. 937 → tens digit is 3 → round down → 900
8. 498 → tens digit is 9 → round up → 500

9. 522 → tens digit is 2 → round down → 500
10. 608 → tens digit is 0 → round down → 600
11. 181 → tens digit is 8 → round up → 200
12. 875 → tens digit is 7 → round up → 900
13. 751 → tens digit is 5 → round up → 800

14. 396 → tens digit is 9 → round up → 400
15. 412 → tens digit is 1 → round down → 400
16. 252 → tens digit is 5 → round up → 300
17. 799 → tens digit is 9 → round up → 800
18. 536 → tens digit is 3 → round down → 500

---

Section 3: Round each number to the underlined place value.

We need to look at the digit just to the right of the underlined one.

7. 3̲87 → underline is on 3 (hundreds place), next digit is 8 (tens) → 8 ≥ 5 → round up → 400
But wait — if 3 is underlined, that means we’re rounding to the *hundreds* place? Let’s check others.

Actually, looking at problem 8: 6̲40 → underline on 6 (hundreds), next digit is 4 → round down → 600

So yes — when a digit is underlined, we round to that place value.

Back to 7: 3̲87 → hundreds place → look at tens digit (8) → 8 ≥ 5 → round up → 3 becomes 4 → 400

But let’s double-check all:

7. 3̲87 → hundreds → tens digit = 8 → round up → 400
4̲45 → hundreds → tens digit = 4 → round down → 400
2̲91 → hundreds → tens digit = 9 → round up → 300
8̲03 → hundreds → tens digit = 0 → round down → 800
5̲28 → hundreds → tens digit = 2 → round down → 500

8. 6̲40 → hundreds → tens digit = 4 → round down → 600
8̲53 → hundreds → tens digit = 5 → round up → 900
7̲69 → hundreds → tens digit = 6 → round up → 800
1̲34 → hundreds → tens digit = 3 → round down → 100
2̲18 → hundreds → tens digit = 1 → round down → 200

Wait — problem 8 says “Round each number to the underlined place value.” and lists two rows. The first row has numbers like 3̲87, 4̲45 etc., and second row starts with 6̲40. So both rows are part of question 7 and 8? Actually, looking back:

The worksheet says:

> Round each number to the underlined place value.
> 7. 3̲87 ___ 4̲45 ___ 2̲91 ___ 8̲03 ___ 5̲28 ___
> 8. 6̲40 ___ 8̲53 ___ 7̲69 ___ 1̲34 ___ 2̲18 ___

So question 7 is for the first set, question 8 for the second set — but both are rounding to the underlined place (which is always the hundreds place here).

So final answers for Section 3:

Question 7:
- 3̲87 → 400
- 4̲45 → 400
- 2̲91 → 300
- 8̲03 → 800
- 5̲28 → 500

Question 8:
- 6̲40 → 600
- 8̲53 → 900
- 7̲69 → 800
- 1̲34 → 100
- 2̲18 → 200

---

Now, compiling ALL answers clearly:

Tens Place:
1. 57 → 60
2. 83 → 80
3. 75 → 80
4. 22 → 20
5. 39 → 40
6. 64 → 60
7. 45 → 50
8. 36 → 40
9. 53 → 50
10. 78 → 80
11. 29 → 30
12. 31 → 30
13. 84 → 80
14. 65 → 70
15. 92 → 90

Hundreds Place:
4. 284 → 300
5. 765 → 800
6. 143 → 100
7. 937 → 900
8. 498 → 500
9. 522 → 500
10. 608 → 600
11. 181 → 200
12. 875 → 900
13. 751 → 800
14. 396 → 400
15. 412 → 400
16. 252 → 300
17. 799 → 800
18. 536 → 500

Underlined Place Value:
7. 3̲87 → 400; 4̲45 → 400; 2̲91 → 300; 8̲03 → 800; 5̲28 → 500
8. 6̲40 → 600; 8̲53 → 900; 7̲69 → 800; 1̲34 → 100; 2̲18 → 200

All calculations verified.

Final Answer:
[60, 80, 80, 20, 40, 60, 50, 40, 50, 80, 30, 30, 80, 70, 90, 300, 800, 100, 900, 500, 500, 600, 200, 900, 800, 400, 400, 300, 800, 500, 400, 600, 900, 800, 100, 200]