Explain why the product of 2.5 and 3.42 is reported as 8.6 and not 8.55 when written…

PHYSICS · Subjective · A Level · Physics · Measurements and their errors · Measurements and their errors

Problem

Explain why the product of 2.5 and 3.42 is reported as 8.6 and not 8.55 when written with the correct number of significant figures.