BIOL 205 PLACEMENT TEST - STUDY GUIDE QUESTIONS AND ANSWERS
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Course
BIOL 205 PLACEMENT
Institution
BIOL 205 PLACEMENT
Square
A number multiplied by itself
Fraction
Represent some part of a whole
Brainpower
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Square root
A value that can be multiplied by itself to give the original numb...
BIOL 205 PLACEMENT TEST - STUDY
GUIDE QUESTIONS AND ANSWERS
Square - answer A number multiplied by itself
Fraction - answer Represent some part of a whole
Square root - answer A value that can be multiplied by itself to give the original number.
Fractions - answer a number that expresses parts of a whole or a group
Reducing Fractions - answer reduce by a common factor
Multiplying Fractions - answer To multiply fractions, multiply the numerators and multiply the
denominators
Dividing Fractions - answer Invert (reciprocal) the second fraction and multiply
Adding Fractions - answer change the fractions into the lowest common denominator and add the
numerators
mixed number - answer a number made up of a whole number and a fraction
Subtracting Fractions - answer Find LCD and subtract numerators
Decimals - answer Represent multiples of 10.
Converting decimals to fractions - answer The value of 0.25 represents 2/10 + 5/100
Find common denominator
,2/10 x 10/10 = 20/100
20/100 + 5/100 = 25/100 —> 1/4
Adding Decimals - answer Line up the decimal points and add normally (ex. 23.62+8.369=31.989)
Subtracting Decimals - answer Line up the decimal points and subtract normally (ex. 20.02-1.36=18.66)
Multiplying Decimals - answer Multiply the #s and then move the decimal point the total # of places in
the answer
Dividing Decimals - answer Move the decimal to the right on both numbers until there is nothing to the
right of the decimal
Exponents - answer The number that is small and raised to show how many times to multiply the
number by itself.
scientific notation - answer a method of expressing a quantity as a number multiplied by 10 to the
appropriate power
Ratios - answer Express a relationship between two or more numbers
Proportions and ratios - answer a/b =c/d,
then a/c =b/d
A/B = C/D,
then A+B/B = C+D/D is equivalent to A/B + A/B = C/D + C/D
directly proportional - answer A property of two variables that change in the same direction at a smaller
rate
Inversley Proportional - answer Change at similar rate, but in opposite direction
, percentage - answer a part of a whole expressed in hundredths
mean - answer "Average" number; found by adding all data points and dividing by the number of data
points
Median - answer The middle number; found by ordering all data points and picking out the one in the
middle ( or if there are two middle numbers, taking the mean of those two numbers).
Mode - answer The most frequent number— that is, the number that occurs the highest of times
metric measurement - answer a system of measurement based on multiples of 10 (liter, gram, meter)
Basic unit of length - answer Meter (m)
Basic unit of mass - answer Kilogram (kg)
basic unit of volume - answer Liter (L)
basic unit of temperature - answer celsius
kilo- (k) - answer 0.001
Hecto - (h) - answer 0.01
deka- (da) - answer 0.1
Meter (m); liter (L); gram (g) - answer 1
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