Regarding your calculations on the salt content of Walkers crisps, how can the one significant figure in 0.4 grams per pack lead to four significant figures in 4.444 grams per day (Feedback, 14 March) ...

Unit 1 Segment C: Significant Figures We explain the rules for using significant figures. Unit 1 Segment C: Significant Figures We take you to a woodworking shop where we explain the rules for using ...