CALCULATOR MANIPULATION. Due to the differences in calculators you will have to be able to use your own effectively.

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Presentation transcript:

CALCULATOR MANIPULATION

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