2a) Round off to the nearest 10 i) $$ 899 \rightarrow $$ ii) $$ 1201 \rightarrow $$ ii) $$ 454882 \rightarrow $$ id) $$ 209 \rightarrow $$

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Sure, let's round each number to the nearest **10**:

### i) $$ 899 \rightarrow $$

- **Units digit:** 9
- Since 9 is **≥ 5**, we round **up**.
- **Rounded number:** **900**

### ii) $$ 1201 \rightarrow $$

- **Units digit:** 1
- Since 1 is **< 5**, we round **down**.
- **Rounded number:** **1200**

### iii) $$ 454882 \rightarrow $$

- **Units digit:** 2
- Since 2 is **< 5**, we round **down**.
- **Rounded number:** **454880**

### iv) $$ 209 \rightarrow $$

- **Units digit:** 9
- Since 9 is **≥ 5**, we round **up**.
- **Rounded number:** **210**

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**Summary:**

1. $$ 899 \rightarrow 900 $$
2. $$ 1201 \rightarrow 1200 $$
3. $$ 454882 \rightarrow 454880 $$
4. $$ 209 \rightarrow 210 $$
- $$ 899 $$ rounds to **900** - $$ 1201 $$ rounds to **1200** - $$ 454882 $$ rounds to **454880** - $$ 209 $$ rounds to **210**

2a) Round off to the nearest 10 i) \( 899 \rightarrow \) ii) \( 1201 \rightarrow \) ii) \( 454882 \rightarrow \) id) \( 209 \rightarrow \)

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