math+of+chemistry

addition and subtraction rules:

//__**EX.1**__// 4.2 x 10*4 g + 3 x 10*3 g convert 42 x 10*3 g +3 x 10*3 g simplify 42,000 g __+3,000 g__ 45,000 g or 45 x 10*3 g Multiplacation rules: //__﻿__// __//**EX. 2**//__ 5.23 x 10*6 __x 7.1 x 10*-2__ 37,133 x 10*4 convert and round 3.71 x 10*5 finished. Division rules EX.3 __5.44 x 10*7__ 8.1 x 10*4 divide 0.671... x 10*3 convert 6.71 x 10*2
 * Use the smallest amount of decimal places.
 * exponents must be the same.
 * use the smallest amount of sigfnificant figures.
 * the M factors are multiplied while the exponents are added
 * use the smallest amount of significant figures.
 * the M factors are divided while the exponents are __//**subtracted**//__