Problem Description:
The task involves rounding numbers to the nearest 100. The provided image shows a list of numbers and their corresponding rounded values. The goal is to verify the correctness of the rounding for each number.
Solution Explanation:
#### Rounding Rules:
To round a number to the nearest 100:
1. Identify the tens digit of the number.
2. If the tens digit is 5 or greater, round up to the next hundred.
3. If the tens digit is less than 5, round down to the previous hundred.
#### Step-by-Step Verification:
Let's go through each number and verify the rounding:
1.
178:
- Tens digit: 7
- Since 7 ≥ 5, round up to 200.
- Correct:
200
2.
214:
- Tens digit: 1
- Since 1 < 5, round down to 200.
- Correct:
200
3.
436:
- Tens digit: 3
- Since 3 < 5, round down to 400.
- Correct:
400
4.
608:
- Tens digit: 0
- Since 0 < 5, round down to 600.
- Correct:
600
5.
391:
- Tens digit: 9
- Since 9 ≥ 5, round up to 400.
- Correct:
400
6.
750:
- Tens digit: 5
- Since 5 = 5, round up to 800.
- Correct:
800
7.
474:
- Tens digit: 7
- Since 7 ≥ 5, round up to 500.
- Correct:
500
8.
843:
- Tens digit: 4
- Since 4 < 5, round down to 800.
- Correct:
800
9.
628:
- Tens digit: 2
- Since 2 < 5, round down to 600.
- Correct:
600
10.
267:
- Tens digit: 6
- Since 6 ≥ 5, round up to 300.
- Correct:
300
11.
84:
- Tens digit: 8
- Since 8 ≥ 5, round up to 100.
- Correct:
100
12.
151:
- Tens digit: 5
- Since 5 = 5, round up to 200.
- Correct:
200
13.
47:
- Tens digit: 4
- Since 4 < 5, round down to 0.
- Correct:
0
14.
887:
- Tens digit: 8
- Since 8 ≥ 5, round up to 900.
- Correct:
900
15.
908:
- Tens digit: 0
- Since 0 < 5, round down to 900.
- Correct:
900
16.
963:
- Tens digit: 6
- Since 6 ≥ 5, round up to 1000.
- Correct:
1000
17.
357:
- Tens digit: 5
- Since 5 = 5, round up to 400.
- Correct:
400
18.
445:
- Tens digit: 4
- Since 4 < 5, round down to 400.
- Correct:
400
19.
391:
- Tens digit: 9
- Since 9 ≥ 5, round up to 400.
- Correct:
400
20.
954:
- Tens digit: 5
- Since 5 = 5, round up to 1000.
- Correct:
1000
21.
729:
- Tens digit: 2
- Since 2 < 5, round down to 700.
- Correct:
700
22.
674:
- Tens digit: 7
- Since 7 ≥ 5, round up to 700.
- Correct:
700
23.
308:
- Tens digit: 0
- Since 0 < 5, round down to 300.
- Correct:
300
24.
257:
- Tens digit: 5
- Since 5 = 5, round up to 300.
- Correct:
300
Final Answer:
All the rounding results in the image are correct.
$$
\boxed{\text{All answers are correct.}}
$$
Parent Tip: Review the logic above to help your child master the concept of rounding numbers to the nearest hundred worksheet.
