Let's solve each problem by rounding the given decimals to the
nearest thousandth.
🔍 What is the "nearest thousandth"?
- The
thousandth place is the
third digit to the right of the decimal point.
- To round to the nearest thousandth, look at the
fourth digit (ten-thousandth place):
- If it's
5 or greater, round
up the thousandth digit.
- If it's
less than 5, keep the thousandth digit
the same.
---
Now, let’s go through each number:
---
1)
37.5816
- Thousandth digit:
1 (third decimal)
- Fourth digit:
6 → ≥ 5 → round up
- 1 becomes 2 →
37.582
✔ 37.582
---
2)
1.06755
- Thousandth digit:
7
- Fourth digit:
5 → ≥ 5 → round up
- 7 + 1 = 8 →
1.068
✔ 1.068
---
3)
22.64735
- Thousandth digit:
7
- Fourth digit:
3 → < 5 → keep 7
→
22.647
✔ 22.647
---
4)
7.1424
- Thousandth digit:
2
- Fourth digit:
4 → < 5 → keep 2
→
7.142
✔ 7.142
---
5)
5.8109
- Thousandth digit:
0
- Fourth digit:
9 → ≥ 5 → round up
- 0 + 1 = 1 →
5.811
✔ 5.811
---
6)
43.21867
- Thousandth digit:
8
- Fourth digit:
6 → ≥ 5 → round up
- 8 + 1 = 9 →
43.219
✔ 43.219
---
7)
9.37826
- Thousandth digit:
8
- Fourth digit:
2 → < 5 → keep 8
→
9.378
✔ 9.378
---
8)
85.0041
- Thousandth digit:
4
- Fourth digit:
1 → < 5 → keep 4
→
85.004
✔ 85.004
---
9)
10.2597
- Thousandth digit:
9
- Fourth digit:
7 → ≥ 5 → round up
- But 9 + 1 = 10 → carry over
- So: 10.260
✔ 10.260
---
10)
2.75483
- Thousandth digit:
4
- Fourth digit:
8 → ≥ 5 → round up
- 4 + 1 = 5 →
2.755
✔ 2.755
---
11)
79.19601
- Thousandth digit:
6
- Fourth digit:
0 → < 5 → keep 6
→
79.196
✔ 79.196
---
12)
6.6532
- Thousandth digit:
3
- Fourth digit:
2 → < 5 → keep 3
→
6.653
✔ 6.653
---
13)
Simon needs help with rounding 8.6028 to the nearest thousandth.
- Number:
8.6028
- Thousandth digit:
2
- Fourth digit:
8 → ≥ 5 → round up
- 2 + 1 = 3 →
8.603
✔ 8.603
---
14)
The area of a circle is 47.75025 square feet. Round to the nearest thousandth.
- Number:
47.75025
- Thousandth digit:
0 (third decimal)
- Fourth digit:
2 → < 5 → keep 0
→
47.750
✔ 47.750
---
✔ Final Answers:
1) 37.582
2) 1.068
3) 22.647
4) 7.142
5) 5.811
6) 43.219
7) 9.378
8) 85.004
9) 10.260
10) 2.755
11) 79.196
12) 6.653
13)
8.603
14)
47.750
---
Let me know if you'd like this as a printable answer sheet!
Parent Tip: Review the logic above to help your child master the concept of round decimals worksheet.
