Let's solve each problem step by step, following the rounding rules.
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Rounding to the nearest 1,000
To round to the nearest
1,000, look at the
hundreds digit (the third digit from the right):
- If it's
5 or more, round
up.
- If it's
less than 5, round
down.
1.
79,500 → Hundreds digit is
5 → Round up →
80,000
2.
36,420 → Hundreds digit is
4 → Round down →
36,000
3.
15,900 → Hundreds digit is
9 → Round up →
16,000
4.
86,500 → Hundreds digit is
5 → Round up →
87,000
5.
27,850 → Hundreds digit is
8 → Round up →
28,000
---
Rounding to the nearest 10,000
To round to the nearest
10,000, look at the
thousands digit (the fourth digit from the right):
- If it's
5 or more, round
up.
- If it's
less than 5, round
down.
6.
32,450 → Thousands digit is
2 → Round down →
30,000
7.
93,260 → Thousands digit is
3 → Round down →
90,000
8.
24,700 → Thousands digit is
4 → Round down →
20,000
9.
13,500 → Thousands digit is
3 → Round down →
10,000
10.
64,120 → Thousands digit is
4 → Round down →
60,000
---
Rounding to 1 decimal place
To round to
1 decimal place, look at the
second decimal digit:
- If it's
5 or more, round up the first decimal.
- If it's
less than 5, leave the first decimal as is.
11.
63.25 → Second decimal is
5 → Round up →
63.3
12.
41.24 → Second decimal is
4 → Round down →
41.2
13.
16.32 → Second decimal is
2 → Round down →
16.3
14.
95.45 → Second decimal is
5 → Round up →
95.5
15.
63.36 → Second decimal is
6 → Round up →
63.4
---
Rounding to 2 decimal places
To round to
2 decimal places, look at the
third decimal digit:
- If it's
5 or more, round up the second decimal.
- If it's
less than 5, leave the second decimal as is.
16.
47.125 → Third decimal is
5 → Round up →
47.13
17.
55.436 → Third decimal is
6 → Round up →
55.44
18.
32.225 → Third decimal is
5 → Round up →
32.23
19.
73.758 → Third decimal is
8 → Round up →
73.76
20.
65.845 → Third decimal is
5 → Round up →
65.85
---
✔ Final Answers:
1.
80,000
2.
36,000
3.
16,000
4.
87,000
5.
28,000
6.
30,000
7.
90,000
8.
20,000
9.
10,000
10.
60,000
11.
63.3
12.
41.2
13.
16.3
14.
95.5
15.
63.4
16.
47.13
17.
55.44
18.
32.23
19.
73.76
20.
65.85
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Let me know if you'd like this in a printable format or with explanations for each!
Parent Tip: Review the logic above to help your child master the concept of free worksheet on rounding decimals.
