Estimate `5673-436`

Explanation

To estimate the value of \( 5673 - 436 \), we can follow these steps:

### Step 1: Round the first number (5673)
- Look at the last two digits of 5673, which are 73. Since 73 is closer to 100 than to 0, we round 5673 up to the nearest hundred.
- The nearest hundred to 5673 is 5700.

### Step 2: Round the second number (436)
- Look at the last two digits of 436, which are 36. Since 36 is closer to 0 than to 100, we round 436 down to the nearest hundred.
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