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Converting Numbers to Scientific Notation 1) find the number of significant figures - see Atlantic Pacific web page 2) write down the numbers - example 1: 0.00010 - two significant figures: 0.00010 - 10 3) put a decimal point after the first number - 1.0 4) write “x 10" after the significant numbers - 1.0 x 10 5) the find the correct exponent, count the number of places the decimal place was moved from the original number to the significant figures number - 0.00010 and 1.0 - in this case 4 places - place the number 4 above the 10 as an exponent - 1.0 x104 6) look at the original number - if the original number is equal to or greater that 1 - the exponent is positive - if the original number is less than 1 - the exponent is negative - in this case the number is less than 1, therefor the exponent is negative and a minus must be placed in front of the four - 1.0 x10-4 7) example 2: - 721000 L 721 L 7.21 L 7.21 x 10 L 7.21 x 105 8) Don’t forget to add units to your number!