Mathematics for IGCSE & O level - Using A Calculator (Section 3 - No. 45)
In order to find the solution of a calculation, what should you do?
You must enter fractions correctly.
You must enter the whole number before a fraction.
You must have some method of estimating the answer.
You should make sure you follow the order of operations.
Explication
These are the steps you need to solve the calculation.