Let's solve the problem step by step using the
rounding rules provided in the image:
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🔷 Rounding Rules Recap:
-
To the nearest 10:
Look at the
ones digit (the last digit).
- If it’s
less than 5, round
down.
- If it’s
5 or more, round
up.
-
To the nearest 100:
Look at the
tens digit.
But this worksheet only asks to round to the
nearest ten, so we’ll focus on that.
---
We are asked to
round each number to the nearest ten.
Let’s go through each one:
---
✔ Step-by-step Solutions:
1.
82 → ones digit is
2 (less than 5) → round down →
80
2.
84 → ones digit is
4 (less than 5) → round down →
80
3.
92 → ones digit is
2 (less than 5) → round down →
90
4.
51 → ones digit is
1 (less than 5) → round down →
50
5.
13 → ones digit is
3 (less than 5) → round down →
10
6.
70 → ones digit is
0 (less than 5) → already a multiple of 10 →
70
7.
66 → ones digit is
6 (≥5) → round up →
70
8.
97 → ones digit is
7 (≥5) → round up →
100
9.
87 → ones digit is
7 (≥5) → round up →
90
10.
29 → ones digit is
9 (≥5) → round up →
30
11.
71 → ones digit is
1 (less than 5) → round down →
70
12.
78 → ones digit is
8 (≥5) → round up →
80
13.
28 → ones digit is
8 (≥5) → round up →
30
14.
36 → ones digit is
6 (≥5) → round up →
40
15.
57 → ones digit is
7 (≥5) → round up →
60
16.
24 → ones digit is
4 (less than 5) → round down →
20
17.
47 → ones digit is
7 (≥5) → round up →
50
18.
20 → ones digit is
0 → already a multiple of 10 →
20
19.
53 → ones digit is
3 (less than 5) → round down →
50
20.
95 → ones digit is
5 (≥5) → round up →
100
21.
41 → ones digit is
1 (less than 5) → round down →
40
---
✔ Final Answers:
1. 82 =
80
2. 84 =
80
3. 92 =
90
4. 51 =
50
5. 13 =
10
6. 70 =
70
7. 66 =
70
8. 97 =
100
9. 87 =
90
10. 29 =
30
11. 71 =
70
12. 78 =
80
13. 28 =
30
14. 36 =
40
15. 57 =
60
16. 24 =
20
17. 47 =
50
18. 20 =
20
19. 53 =
50
20. 95 =
100
21. 41 =
40
---
🟩 Summary:
You can check your answers using the rule:
>
Look at the ones digit. Less than 5? Round down. 5 or more? Round up.
✔ All answers have been calculated accordingly.
Let me know if you'd like a printable version or help with rounding to the nearest 100!
Parent Tip: Review the logic above to help your child master the concept of rounding 10s and 100s worksheet.
