What is a number that is not exact; a careful guess called?

• A. Exact
• B. Estimate
• C. Measurement
• D. Calculation

Answer: (B)

Estimating is using a number that isn’t exact, a careful guess. When you don’t know the exact value or don’t need it precisely, you can estimate to get a close idea. For example, if you have a jar of candies and can’t count them all, you might estimate there are about 50 instead of counting every piece. An exact number would be a precise count, which you only have if you know it exactly. A measurement is the act or result of finding how much there is and can be exact or approximate, but it isn’t defined as a guess. A calculation is the process you use to find an answer, which can lead to an exact result or an estimate, depending on the situation. So the best fit for a not-exact, careful guess is an estimate.