ROUNDING TO TWO SIGNIFICANT DIGITS There should be two numbers to the right of the decimal place that are "significant". Numbers are significant if they are NOT zeroes that immediately follow the decimal. Round up or down as necessary. EXAMPLES 1.212.1.21 8.694 . 8.69 0.00104. 0.001 24.3389. 24.34 11.919. 11.92 89.9989. 90.00 1. Round to two significant digits: 9.365 37 7.211 21 0.0333 033 101.199. 01, 2 3.109. 2.0954. 19.9954. SCIENTIFIC NOTATION Use exponential notation 10 = 10 x 10 = 100 10-21 10X10 == 1 = 0.01 100 12.9956. 2.095. 2.0956. 19.995 19.9956. 10 10 x 10 x 10 = 1000 10-3== 10=10 = 0.001 10-10-10 1000 10-1 = === 0.1 10