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CALCULATOR MANIPULATION

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: Ex: x 10 3 = E3 3.24 x 10 5 = 3.24E5 6.87 x 10 -9 = 6.87E-9. x 10. Adding and Subtracting SCI. NOT.

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CALCULATOR MANIPULATION

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  1. CALCULATOR MANIPULATION

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

  3. THE BIG “E”! • An “E” represents: • Ex: • x 103 = E3 • 3.24 x 105 =3.24E5 • 6.87 x 10-9= 6.87E-9 x 10

  4. Adding and Subtracting SCI. NOT. PROBLEM: 1.56 x 104 + 5.82 x 102 • THIS IS WHAT YOU ENTER INTO YOUR CALCULATOR: 1.56E4 + 5.82E2 • DO NOT ENTER: 1.56x10^4 + 5.82x10^2

  5. ANSWER 1.618 E 4 ROUND! 1.62E4 OR 1.62 x 104

  6. ROUNDING RULE DO NOT ROUND UNTIL YOUR FINAL ANSWER

  7. PRACTICE: 1. 5.145 x 103 – 2.94 x 1011 2. 7.34 x 1013 + 4.84412 x 10-12 3. 5696– 45.6785 5.145E3 – 2.94E11 = -2.94 x 1011 7.34E13 + 4.84412E-12 = 7.34 x 1013 5696 – 45.6785 = 5.65 x 103

  8. Multiplying and Dividing SCI. NOT. PROBLEM:6.123 x 107 / 1.8267 x 102 ENTER: 6.123E7/1.8267E2 ONCE AGAIN MAKE SURE YOU ARE NOT ADDING x10^ ! 3.35 E5 OR 3.35 x 105

  9. PRACTICE: • 3.362 x 101 * 8.11267 x 1024 2.73 E26 • 12331/ 1.8267 x 10-62 6.75 E65 • 3* 9 2.70 E1 • 2.45123 x 10-97 / 9.89377 x 1090 0

  10. THREE NUMBER RULE • IF THERE ARE NOT ENOUGH NUMBERS ADD ZEROS • IF THERE ARE TOO MANY NUMBERS ROUND

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