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Scientific Notation
Helping us write
really tiny
or
really big numbers
Carelessness when using numbers

I have a million math problems to do
 I have a trillion things to get done tonight

If you win 1 million dollars and you’re
given the prize in 100 dollar bills, your
stack of money is….
4 inches high
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However…

If you win 1 trillion dollars and you’re
given the prize in 100 dollar bills, your
stack of money is….
67 miles high
Rules to Scientific Notation
Parts:
1. Coefficient – must be a number from
1 – 9.9
2. Exponent – a power of 10
3.4 x 106
Easier than writing 3,400,000
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Numbers Greater Than 10
Find the number by moving the decimal
point that is between 1 – 9.9
45,300,000  4.53
2. Write a positive exponent which is
equal to the number of places you
moved the decimal point to the left.
4.53 x 107
1.
Numbers Less Than 1
Find the number by moving the decimal
point that is between 1 – 9.9
0.000291  2.91
2. Write a negative exponent which is
equal to the number of places you
moved the decimal point to the right.
2.91 x 10-4
1.
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Math Operations & Sci. Notation
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