Presentation on theme: "Sig Figs Contents: Rules for how many How many examples"— Presentation transcript:
1 Sig Figs Contents: Rules for how many How many examples Rules for addition and subtractionWhiteboards for addition and subtractionRule for multiplication and divisionExamples of multiplication and division
2 How many sig figs are there? 1. The leftmost nonzero digit is the most significant digit2. If there is no decimal point, the rightmost nonzero digit is the least significant digit3. If there is a decimal point, the rightmost digit is the least significant digit even if it is a zero.4. All digits between the least and most are also significant.TOC
3 Examples30102020.20.030.0103.200 x 104TOC3, 6, 1, 2, 3, 5, 4
4 Examples 100 1.0 x 102 100. .012 .000150 37 people in a class 50,000 at a rallyTOC1, 2, 3, 2, 3, n/a, ??