Math Vocabulary Study Guide

TEST: Tuesday, April 25

67,893 / Sixty-seven thousand, eight hundred ninety-three / 60,000 + 7,000 + 800 + 90 + 3 / (6 x 10,000) + (7 x 1,000) + (8 x 100) + (9 x 10) + (3 x 1)
Standard Form / Word Form / Expanded Form / Expanded Notation

Graph Key: The part of a pictograph that explains what each symbol represents.

Even Number: Any number that can be split into 2 equal groups. They have a 0, 2, 4, 6, or 8 in the one’s place.

Odd Number: Any number that cannot be split into 2 equal groups. They have a 1, 3, 5, 7, or 9 in the one’s place.

Greater ThanLess Than=Equal To

Estimate: When you are asked to find an answer that is close to the answer. (Approximately, About, Round)

Addition: The math operation that is used when you join2 or more unequalgroups of objects together.The answer to an addition problemis called the sum.

Subtraction: The math operation that is used to compareor find the difference between numbers.

  • Difference: The answer to a subtraction problem.

Multiplication: The math operation that is used when you need to joinequal groups. You are looking for the total.The answer to a multiplication problemis called the product.

  • Factor: Numbers that are multiplied together to give a problem.
  • Array: A way of displaying a multiplication or division problem in rows and columns.

Division: The math operation that is used when you need to separate or put objects into equal groups. The total is given to you in the word problem and you are looking for the number in each group or the number of groups.The answer to a division problemis called the quotient.

Fraction: A number used to name a part of a whole, a part of a set, or a location on a number line. There must be equal parts.

  • Numerator: The number above the fraction bar in a fraction.
  • Denominator: The number below the fraction bar in a fraction. It tells you the total number of equal parts in all.
  • Decomposing Fraction: Breaking up a fraction into the sum of its unit fractions. For example, ¾ = ¼ + ¼ + ¼.
  • Equivalent Factions: Two or more fractions that name the same amount.

Congruent: When shapes are the same shape and same size.

Area: The number of square units that cover a region. You can just count the squares, or use Area = Length x Width if the shape is a rectangle or a square.

Perimeter:The distance around a figure. You add together the length of each side to determine the perimeter.

Pattern: A set of numbers or objects that follow a rule. Example: 3, 6, 9, 12, 15 Rule: +3

Polygon:A closed figure made up of straight line segments.

  • Triangle: A polygon with 3 sides.
  • Quadrilateral: A polygon with 4 sides.
  • Trapezoid: A quadrilateral with only one pair of parallel lines.
  • Parallelogram: A quadrilateral in which opposite sides are parallel.
  • Rhombus: A quadrilateral with all 4 sides the same length.
  • Rectangle: A quadrilateral with 4 right angles.
  • Square: A quadrilateral with 4 right angles and all 4 sides the same length.
  • Pentagon: A polygon with 5 sides.
  • Hexagon: A polygon with 6 sides.
  • Octagon: A polygon with 8 sides.

Faces: A flat surface on a solid figure.

Vertices: The point where 2 rays meet to form an angle.

Edges: A line segment where 2 faces meet.

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Student’s Name______Parent’s Signature______

The test will be Tuesday, April 25th!