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Due to the differences in calculators you will have to be able to use your own effectively
THE BIG “E”! An “ E ” represents: An “ E ” represents: Ex: Ex: x 10 3 = E3 x 10 3 = E x 10 5 = 3.24E x 10 5 = 3.24E x = 6.87E x = 6.87E-9 x 10
Adding and Subtracting SCI. NOT. PROBLEM: 1.56 x x 10 2 THIS IS WHAT YOU ENTER INTO YOUR CALCULATOR: 1.56E E2 DO NOT ENTER: 1.56x10^ x10^2
ANSWER E 4 ROUND! 1.62E4 OR 1.62 x 10 4
ROUNDING RULE DO NOT ROUND UNTIL YOUR FINAL ANSWER
5.145E3 – 2.94E11 = x E E-12 = 7.34 x – = 5.65 x – = 5.65 x x 10 3 – 2.94 x x x – PRACTICE:
PROBLEM: x 10 7 / x 10 2 ENTER: 6.123E7/1.8267E2 ONCE AGAIN MAKE SURE YOU ARE NOT ADDING x10^ ! 3.35 E5 OR 3.35 x 10 5 Multiplying and Dividing SCI. NOT.
PRACTICE: x 10 1 * x E26 / x E65 3 * E1 x / x
THREE NUMBER RULE oIF THERE ARE NOT ENOUGH NUMBERS ADD ZEROS oIF THERE ARE TOO MANY NUMBERS ROUND
Exponent Rules. Parts When a number, variable, or expression is raised to a power, the number, variable, or expression is called the base and the power.
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