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sif-fig-rules - Significant Figures rules for counting sig...

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Unformatted text preview: Significant Figures rules for counting sig figs _ l} non—zero integers — always significant ('2‘; zeros to the left or the first non-zero digit not significant _ i e ,0 008 {31) captive zeros— altar at} s significant _ ie 8.08 _ (4} if it > 1, all zeros right of the decimal point asesignificant ' i e., 3.040 (5} if # < 1, trailing zeros are significant ‘ i. e., 0.00930 _ (i3) exact numbers- ???; use scientific notation to clarify i.e., 100 can have 1, 2 or 3 sig figs but 1.0 x 102 has only 2 sig figs ' in adding or subtracting sig figs, the final result keeps the same number- of decimal places as the least precise number i.e., 415.5 ' 3.64 +' 0.238 419.378 419.4 in multiplying or dividing sig figs, the final result has the same number of sig figsas the least precise number i.e., 5.0 / 0.794 = 6.297229. .. 6.3 Note: sig figs ending in 0 - '4 “round down”, 5 — 9 “round up” ...
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