Mathematics for IGCSE & O level - Using A Calculator (Section 1 - No. 3)
When calculating with time, what is the first step to make sure that you can calculate correctly?
Entering the time in a decimal format
Correctly typing the time into your calculator
Selecting the correct units
Experimenting to see if the key you are going to press is the key you need to use.
Explanation
Correctly typing the time into your calculator is the correct answer, although all the other answer choices have merit
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