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Exponent Laws Simplifying exponents Scientific notation Add and Subtract with Scientific Notation Multiply and Divide with Scientific Notation 10 20 30 40 50
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When I multiply powers with the same base I _________ the exponents?
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ADD
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When I divide powers with the same base I _________ the exponents?
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Subtract
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When I raise a power to a power I ______________the exponents.
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multiply
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Anything to the zero power….
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One
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When a power is raised to a negative exponent, I have to….
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Flip it! And make the exponent positive
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There are about 100,000,000,000 trillion cells in the human body. Write this amount in scientific notation.
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1 x 10 11
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The population of the world is about 7 x 10 9 people. Write this value in standard form.
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7,000,000,000
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. What number (in standard form) is equivalent to 7.31E-6?
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0.00000731
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The decimal number in scientific notation must follow this rule
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Be between 1-10
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1.092 x 10 3 in standard?
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1092
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When I add or subtract exponents I need to make sure that…
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The exponents are the same
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When the exponents are different I have to…
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Make a table
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Sarah has about 7.2 x 10 6 hairs on her head. Sarah’s baby sister has about 3.2 x 10 4 hairs on her head. How much hair do they have altogether?
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7.232 x 10 6 hairs
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The distance from Earth to the sun is 9.3 x10 7 miles. Earth is 2.4 x10 5 miles from to the moon. Is Earth closer to the sun or the moon?
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Moon
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True or false? When I add in scientific notation I add the exponents.
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False
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The last step in multiplication and division is..
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Simplifying
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1.092 x 10 3
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2 x 10 8
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Carlos divided the exponents instead of subtracting the exponents.
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An object weighs 2 x 10 4 lbs. How much does an object 300 times heavier weigh? Write your answer in scientific notation
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6 x 10 6 lbs
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