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Math Review 4th Grade

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  • What is the "product" of 60 and 90?
    5,400
  • What is the "range" of this line plot? Is there an "outlier"?
    The range is the difference between the lowest and highest values, so it is 15 inches. An outlier "lays outside" or away from most of the data. 39 inches
  • Is 31 a prime number?
    Check skip counting numbers, 2s - no, 3s - no, 5s - no. Yes this is prime.
  • What are "perpendicular" lines?
    Perpendicular lines create a 90 degree angle when the intersect (cross).
  • If angle BAC is 25 degrees, what is the measurement of angle CAD?
    90 - 25 = 65 degrees
  • When finding the "minimum" value, what are you looking for?
    The smallest, or least value.
  • What is 87,632 rounded to the nearest 1000?
    88,000.
  • What shape is a polygon, quadrilateral, parallelogram, rhombus, and rectangle?
    A square
  • Which number is both a factor of 100 and a multiple of 5? 4 25 30 500
    25
  • Name 4 fractions that are equivalent to 2/10.
    1/5, 4/20, 6/30, 8/40, 10/50, 20/100
  • If asked to "sequence" the following fractions [ 1/8, 2/3, 3/8 and 1/4 ], what would you do?
    Put them in order. [ 1/8, 1/4, 3/8, and 2/3 ]
  • What operation do you use to find the "difference"? For example, what is the difference in time spent practicing?
    Subtraction