To determine both the rough estimate and closer estimate for the numbers 4125, 139, and 62, let’s break it down into manageable parts.
First, let’s look at each number:
- 4125: A rough estimate can be obtained by rounding to the nearest hundred. Therefore, 4125 rounds to 4100 for a rough estimate. For a closer estimate, you might round it to 4120.
- 139: For a rough estimate, this number rounds to 100.
- 62: Similarly, for a rough estimate, 62 rounds to 60.
Next, we can summarize:
- Rough Estimate: 4100 + 100 + 60 = 4260
- Closer Estimate: 4120 + 100 + 60 = 4280
Thus, the rough estimate of adding these three numbers is 4260, while the closer estimate is 4280. This differentiation in estimates can be quite beneficial in various everyday calculations, helping to provide quick approximations as well as more precise evaluations when necessary.