Round of the given numbers as indicated:
nearest 10 i. 3 ii. 6 iii. 23 iv 47

Answer

To round off the given numbers to the nearest 10, we will follow these steps for each number:

### Step-by-Step Solution:

1. **Rounding 3:**
- Look at the unit's place of 3, which is 3.
- Since 3 is less than 5, we round down.
- Therefore, 3 rounded to the nearest 10 is **0**.

2. **Rounding 6:**
- Look at the unit's place of 6, which is 6.
- Since 6 is greater than 5, we round up.
- Therefore, 6 rounded to the nearest 10 is **10**.

3. **Rounding 23:**
- Look at the unit's place of 23, which is 3.
- Since 3 is less than 5, we round down.
- Therefore, 23 rounded to the nearest 10 is **20**.

4. **Rounding 47:**
- Look at the unit's place of 47, which is 7.
- Since 7 is greater than 5, we round up.
- Therefore, 47 rounded to the nearest 10 is **50**.

### Final Answers:
- 3 rounded to the nearest 10 is **0**.
- 6 rounded to the nearest 10 is **10**.
- 23 rounded to the nearest 10 is **20**.
- 47 rounded to the nearest 10 is **50**.