Answer:
2000 is not a good estimate for the difference of 4315 and 156.
Explanation:
For a number to be a good estimate between the sum or the difference between two numbers, those numbers must be close to the actual result.
Following this reasoning, we can say that 2000 is not a good estimate for the difference between 4315 and 156, since this difference results in 4159, which is a number very far from 2000.
