ACT Prep Math
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| even numbers | divide evenly by 2
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| odd numbers | can not be divided by 2, remainder
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| digits | 1, ,2, 3, 4, 5, 6, 7, 8, 9, 10 are used to make other numbers
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| prime numbers | cab be divided by 1 and itself
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| absolute value | always even
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| variables | the letters next to the numbers 2x
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| coefficients | the numbers next to the letters 2x
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| divisibility rules | any even number can be divided by 2
any number divisible by 3 if sum of its digits can be evenly divided by 3
any number is divisible by 5 its last digits are 0 or 5
any number is divisible by 6 if i it can be divided by its factors
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| divisibility rules 2 | any number divisible by 8 if the last 3 digits is also divisible by 8
any number is divisible by 9 if the sum of its digits is divisible by 9
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| equal sign | =
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| NOT equal sign | ≠
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| greater than, strict inequality | >
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| less than, strict inequality |
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| greater than inequality | ≥
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| less than inequality | ≤
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| parentheses | ( )
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| brackets | [ ]
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| plus sign | +
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| minus sign | -
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| plus minus sign | plus sign over the minus sign
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| asterick | *
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| time sign | x
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| multiplication dot | •
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| division sign | ÷
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| division slash | /
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| which questions should you answer first? | the easiest
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| how many questions do you need to answer in 60 minutes | 60
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| if you are trying to get a 24 on the ACT math, how many do you have to answer correct | 39-40
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| what kind of math is on the test? | pre algebra, elementary algebra, intermediate algebra, coordinate geometry, plane geometry, and trigonometry
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| if you do not know the answer to a question what should you do? | guess
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| angle | formed by 2 lines or line segments which intersect a one point
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| vertex | the point of intersections
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| what are angles measured in? | degree or radian
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| acute angle | measurement 0-90 degrees
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| right angle | an angle whose measurement in degrees are exactly 90
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| obtuse angle | an angle whose degree measure is between 90-180
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| straight angle | an angle whose degree measure is exactly 180
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| perpendicular | lines are formed when the angle between two lines is 90 degrees
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| supplementary | 2 angles= 180 degrees
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| complementary | 2 angles= 90 degrees
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| bisect | angle means to cut it in half
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| integers | -3, -2, -1, 0, 1, 2, 3
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| rationals | fractions, that is, anything expressible as ration of integers
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| real numbers | integers, rationals, radicals
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| order of operations | PEMDAS. parentheses, exponents, multiplication, divide, add, subtract
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| mean | average
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| median | middle number
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| mode | number that occurs most
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| probability | # of desired outcomes over # of total outcomes
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| area | 1/2bh
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| circle area | πr squared
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| circle circumference | 2πr
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| full circle = how many degrees | 360º
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Created by:
mmomon12
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