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A- 0
B- 0
C- 8
D- 10
E- 0
F- 18
G- 0
H- 0
Per means division
Of hyphen or means multiplication
Square means to the second power
Cube or cubic means to the third power
A conversion factor is a statement of equality that is used to convert between units
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Absolute change describes the actual increase or decrease from a reference value (starting
number) to a new value.
Reference value is your starting number.
Relative change is a fraction that describes the size of the absolute change in comparison to the
reference value.
Relative change= (new value-reference value/reference value) (x100%)
Absolute change= new value-reference value
Absolute difference is the actual difference between the compared value and the reference
value.
Absolute difference= compared value- reference value
Relative difference describes the size of the absolute difference as a fraction of the reference
value:
Relative difference= absolute difference/ reference value
Relative difference= (compare value-reference value/reference value) (x100)
We use the rule that P% more than means (100+P)% of
In percentage points assume it is an absolute change or difference
With the %sign or the word percent assume it is a relative change or difference
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Scientific notation is a format in which a number is expressed as a number between 1 and 10
multiplied by a power of ten. 6,700,000,000 is a scientific notation is 6.7 x 10^9
OR .000000000000002 is 2.0 x 10^-15
Perspective through estimation
An estimates specifies a broad range of values, usually within one or two order of magnitude
powers of ten, such as “in the ten thousands” or “in the millions”.
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2a-2c and 3a-3b textbook readings
