​-​
​-​
​Sig fig rules:​
​-​ ​0s before non-zero digit in a decimal don’t count. 0s after it do.​
​-​ ​When adding sig figs, use same amount of decimal places as the component​
​with the least amount of decimal places. Ex. 8.3 + 7 = 15. 8.123 + 7.1 = 15.2​
​Dimensional analysis​
​-​ ​Conversion factors must have a common zero. Ex. converting F and C. 0 C = 32​
​F​