Significant Figures

Rule 1: Digits other than zero are significant 96 g = 2 Sig Figs 152 g = __________ Sig Figs 61.4 g = 3 Sig Figs g = __________ Sig Figs 0.52 g = 2 Sig Figs0.763 g = __________ Sig Figs

Rule 2: Zeros appearing between nonzero digits are significant 306 g = 3 Sig Figs40601 g = __________ Sig Figs g = 4 Sig Figs g = __________ Sig Figs g = 4 Sig Figs g = __________ Sig Figs

Rule 3: Zeros appearing in front of all nonzero digits are NOT significant m = 5 Sig Figs kg = __________ Sig Figs kg = 1 Sig Fig kg = __________ Sig Figs

Rule 4: Zeros after or to the right of the decimal point are significant = 10 Sig Figs7.940 m = __________ Sig Figs m = 5 Sig Figs m = __________ Sig Figs 82.0 m = 3 Sig Figs m = __________ Sig Figs

Rule 5: Zeros at the end of a number are significant if a decimal point is present kg = 1 Sig Figs kg = __________ Sig Figs kg = 4 Sig Figs200. m = __________ Sig Figs

Rule 6: Only the coefficient in scientific notation is significant, not the power or exponent x 10 4 m = 3 Sig Figs0.210 x 10 3 m = __________ Sig Figs x 10 3 m= 4 Sig Figs9.416 x 10 8 m = __________ Sig Figs x 10 7 m = 5 Sig Figs410.0 x 10 3 m = __________ Sig Figs 1 x 10 4 m = __________ Sig Figs x m = __________ Sig Figs

Addition/Subtraction: After adding or subtracting, round off answer to least accurate number ==> ==> ==>

Multiplication/Division: After multiplying or dividing, round off answer to least number of significant figures x 0.20 x ÷ ==> ==>