Math Praxis Flashcards 1

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1. 
terms that have the same variables raised to the same exponent. e.g. 3x2 and -2x2.
 
like terms
 
2. 
distributive property
 
adding two numbers and then multiplying by another yields the same result as multiplying each one by the number and then adding the products. i.e. a(b + c) = ab + ac, or (a+b)c = ac + bc. E.g. 2(3 + 5) = 2x3 + 2x5.
 
3. 
multiplicative inverses
 
  • two numbers whose product is 1.

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    4. 
    factor tree
     
  • a diagram representing a systematic way of determining all the prime factors of a number.

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    5. 
    frustum
     
  • the region a solid cone or pyramid between the base and a plane parallel to the base.
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    6. 
    histogram
     
    a type of statistical graph that uses bars, where each bar represents a range of values and the data is continuous.
     
    7. 
    inequality
     
    a mathematical sentence that includes one of the symbols >, <, or the symbols for greater than or equal to, less than or equal to, or not equal.
     
    8. 
    centroid
     
  • the point of intersection of the three medians of a triangle.

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    9. 
    commutative property
     
    the order of numbers in a calculation does not affect the result. e.g. Addition is commutative since a + b = b + a. E.g. 3 + 5 = 5 + 3. Subtraction is not commutative since 8 - 2 and 2 - 8 are not equal.
     
    10. 
    composite number
     
    a whole number (integer) that has more than 2 different factors. e.g. 18 has factors 1, 18, 2, 9, 3, 6 so it is composite