Skill: Estimate quotients with compatible numbers

To estimate a quotient, replace the dividend with a nearby number that is easy to divide by the divisor. This nearby number is called a compatible number.

Example: Estimate $283 \div 7$.

1. Find a number close to $283$ that is easy to divide by $7$.
   $280$ is close to $283$, and $280$ is a multiple of $7$.

2. Replace $283$ with $280$:

$$283 \div 7 \approx 280 \div 7$$

3. Divide:

$$280 \div 7 = 40$$

So, the estimate is:

$$\boxed{40}$$

This is reasonable because $280$ is very close to $283$, so the quotient should be close to $40$.