Activity #2 -­‐ Significant Figures Group Names ________________________________ ________________________________ ________________________________ Goal -­‐ To apply the rules of significant figures to determine the correct amount of significant figures for a problem. Problem 1 -­‐ What is the correct answer when you multiply 3.1 by 8.66? A. 26.846 B. 26.85 C. 26.9 D. 26.8 E. 27.0 F. 27 Problem 2 -­‐ What is the correct answer when you add 3.1 to 8.66? A. 11.76 B. 11.8 C. 12 D. 10 Problem 3 -­‐ Complete the following arithmetic. Report your answers using scientific notation and the correct number of significant figures. 39.1
( 0.456 − 1.23) = ? 7.75