Loading...
Loading...
One of the most common reasons IGCSE students lose marks. Master rounding, counting sig figs, decimal places, and standard form in 10 rapid-fire questions.
10 questions — rounding, counting sig figs, decimal places, and standard form. Type your answer and press Enter or Submit.
“Give your answer correct to 3 significant figures” is the default instruction on most Cambridge papers. If no accuracy is specified, 3 s.f. is expected. Premature rounding (rounding before the final step) is one of the most penalised errors in IGCSE marking.