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Math 8 Unit B: Scientific Notation
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Terms in this set (28)
Adding with Scientific Notation
Add the factors, keep the same base and exponent
Subtracting with Scientific Notation
Subtract the factors and keep the same base and exponent
Multiplying with Scientific Notation
Multiply the factors keep the base and add the exponents. Make sure final result is in scientific notation
Dividing With Scientific Notation
Divide the factors keep the base and subtract the exponents. Make sure final result is in scientific notation.
Standard Form
Scientific Notation
The first # is ≥1 and<10 multiplied by a power of 10.
Scientific Notation with a Negative power of ten
56.789 × 10⁻³=.056789
Move the decimal to the left 3 place values
Scientific Notation with a Positive Power of ten
56.789×10⁵=5,678,900
Move the decimal to the right 5 place values
Choice c
Choice D
8 X 10⁴
9,300,000
City B 670,000<680,000
7.3 X 10⁻³
.0391 move original decimal 2 places to the left
Choice A
Choice A
Add factors keep the base and exponent the same 7.3 X 10⁷
11.
Subtract the fctors keep the base and exponent the same 5.2 X 10⁶
12.
Multiply the factors keep the base and add the exponents 35 X 10⁻⁵ =3.5 X 10⁻⁴ ( make sure answer is in scientific notation!)
13.
Multiply the factors keep the base and add the exponents 25.37 X 10¹⁴=2.537 X 10¹⁵ ( make sure answer is in scientific notation!)
14.
Divide the factors keep the base and subtract the exponents 2.6 X 10⁻³ ( make sure answer is in scientific notation!)
15.
ESTIMATE 8 X 10⁸ ÷ 2 X 10⁶= 4 X 10² about 400 pounds of garbage!
16. Estimate
After getting the exponents the same, Subtract the factors keep the base and exponent the same
67 X 10⁵ - 3 x 10⁵= 64 X 10⁵
in scientific 6.4 x 10⁶
17.Tricky! Get exponents the same first!!!!
Subtract the fctors keep the base and exponent the same .24 X 10⁻⁶ =2.4 X 10⁻⁷
18.
Answer should be 9.5 X 10⁴ the friend had -4 as the exponent
19.
( 5.83 +4.23+3.94) X 10⁵= 14X 10⁵
In scientific 1.4 X 10⁶
21.
(7X 10²⁵) + ( 7 X 10²⁵) =14 x 10²⁵
in scientific 1.4 x 10²⁶
22.
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