Problem
Using a balance with an uncertainty of 0.5 g, you measure the mass of a cup of sugar to be 245.4 g. You then pour some of the sugar into a bowl of cake mix you are making and when you re-weigh the cup of sugar, you measure its mass to be 65.7 g. What are the largest and smallest masses of sugar that you could reasonably have poured into your cake mix? Explain your answer.