Math Terms

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Across
  1. 2. of operations The results of applying an operation to given numbers (e.g., adding two whole numbers results in a number greater than or equal to the original numbers).
  2. 3. A two-dimensional figure whose beginning and ending points meet, such that the plane in which the figure lies is divided into two parts---the part inside the figure and the part outside the figure (e.g., circles, squares, rectangles)
  3. 4. The horizontal and vertical number lines used in a rectangular graph or coordinate grid system.
  4. 6. property For any real numbers a, b, and x, x(a + b) = ax + bx.
  5. 8. A number or expression that divides exactly another number
  6. 9. expressions Expressions that have the same value but are represented in a different format using the properties of numbers
  7. 10. An increase in size in all directions by a uniform amount.
  8. 13. The number (0), that is, adding 0 does not change a number's vale (e.g., 5 + 0 = 5).
  9. 14. Numbers that correspond to points on a graph in the form (x , y).
  10. 15. A mathematical sentence (e.g., 2x = 10) that equates one expression (2x) to another expression (10).
  11. 16. value A number's distance from zero (0) on a number line. The absolute value of both 4, written |4|, and negative 4, written |-4|, equals 4.
  12. 17. The way in which three or more numbers are grouped for addition or multiplication does not change their sum or product (e.g., 2 + 3 = 3 +2 or     4 x 7 = 7 x 4).
  13. 19. A mathematical expression that contains variables and describes a pattern or relationship.
  14. 21. Obtaining the measure of an object by using measuring devices, either standard devices of the customary or metric systems, or nonstandard devices such as a paper clip or pencil.
  15. 22. The inside region of a two-dimensional figure measured in square units (e.g., a rectangle with sides of 4 units by 6 units contains 24 square units or has an area 24 square units)
  16. 23. The amount of space that can be filled. Both capacity and volume are used to measure three-dimensional spaces; how ever, capacity usually refers to fluids, whereas volume usually refers to solids.
  17. 24. A zigzag on the line of the x- or y-axis in a line or a bar graph indicating that the data being displayed does not include all of the values that exist on the number line being used. Also called a Squiggle.
  18. 25. The shape made by two rays extending from a common end point, the vertex. Measures of angles are described using the degree system.
  19. 26. or system A network of evenly spaced, parallel horizontal and vertical lines especially designed for locating points, displaying data, or drawing maps.
Down
  1. 1. A line segment from any point on the circle passing through the center to another point on the circle.
  2. 3. The order in which two numbers are added or multiplied does not change their sum or product (e.g., 2 + 3 = 3 +2 or 4 x 7 = 7 x 4).
  3. 4. A mathematical sentence in which two expressions are connected by an equality
  4. 5. Two angles, the sum of which is exactly 90 degrees.
  5. 7. The line or plane upon which a figure is thought of as a resting.
  6. 11. An angle with a measure of less than 90 degrees.
  7. 12. property A number and its additive inverse have a sum of zero (0) (e.g., in the equation 3 + -3 = 0, 3 and -3 are additive inverses of each other).
  8. 17. A mathematical sequence in which two expressions are connected by an equality symbol.
  9. 18. The perimeter of a circle is called its circumference.
  10. 20. The use of rounding and/or other strategies to determine a reasonably accurate approximation, without calculating an exact answer.
  11. 21. displays Different ways of displaying data in tables, charts, or graphs, including pictographs, circle graphs, single, double, or triple bar and line graphs, histograms, stem-and-leaf plots, and scatter plots.