- The document discusses counting and rounding significant figures when performing calculations with measurements. It provides rules for determining the number of significant figures in products, quotients, sums, and differences. - It also discusses common units in the International System of Units (SI) including prefixes, and provides examples of unit conversions using dimensional analysis and setting up conversion factors.

8. Common Prefixes in the SI System Base x 10 -9 0.000 000 001 n nano- Base x 10 -6 0.000 001  or mc micro- Base x 10 -3 0.001 m milli- Base x 10 -2 0.01 c centi- Base x 10 -1 0.1 d deci- Base x 10 3 1,000 k kilo- Base x 10 6 1,000,000 M mega- Power of 10 Decimal Equivalent Symbol Prefix

9. Common Units and Their Equivalents 2.54 centimeters (cm) exactly = 1 inch (in.) 30.48 centimeters (cm) = 1 foot (ft) 1.094 yards (yd) = 1 meter (m) 39.37 inches (in.) = 1 meter (m) 0.6214 mile (mi) = 1 kilometer (km) Length

10. Common Units and Their Equivalents, Continued 1000 cubic centimeters (cm 3 ) = 1 liter (L) 3.785 liters (L) = 1 U.S. gallon (gal) 1.057 quarts (qt) = 1 liter (L) 1000 milliliters (mL) = 1 liter (L) Volume 28.35 (g) = 1 ounce (oz) 453.59 grams (g) = 1 pound (lb) 2.205 pounds (lb) = 1 kilogram (km) Mass