Mathematics for IGCSE & O level - Estimation (Section 2 - No. 15)
Which of the following is a good reason to estimate the result of a calculation?
To obtain a very precise answer.
To provide a rough idea of what the answer should be.
To make the calculation harder.
To find the exact result in a complex problem.
Εξήγηση
Estimation is done to check if the answer is correct.