1. CRCT REVIEW MATH You are going to do great!!!

2. PLACE VALUE

3. ORDERED PAIR (1,2) A pair of numbers used to locate a point on apoint coordinate planecoordinate plane; the first number tells how far to move horizontally and the second number tells how far to move vertically

5. relation A set of ordered pairsordered pairs Example: (5,1) (10,2) (15,3) (20,4) (25,5)

6. GREATEST COMMON FACTOR The greatest factor that two or more numbers have in common Example: 18: 1, 2, 3, 6, 9, 18 30: 1, 2, 3, 5, 6, 10, 15, 30 6 is the GCF of 18 and 30.factor

7. MULTIPLES multiple The product of a given whole number and another whole numberproductwhole number Example:

8. percent The ratio of a number to 100; percent means "per hundredratio

9. measure of central tendency A measure used to describe data; the mean, median, and mode are measures of central tendency.data meanmedianmode

10. mean The number found by dividing the sum of a set of numbers by the number of addends; see also average Example: 74, 91, 63, 92, 85 sumaverage

11. mode The numbers or items that occur most often in a set of data Example: The mode of 1, 3, 4, 4, and 6 is 4.data

12. median The middle number or the average of the two middle numbers in an ordered set of data Example: The median of 1, 3, 4, 6, and 7 is 4. data

13. range The difference between the greatest and least numbers in a set of data Example: The greatest temperature is 83°F. The least temperature is 80°F. Since 83 - 80 = 3, the range is 3°F.differencedata

14. number line A line with equally spaced tick marks named by numbers (POSITIVE AND NEGATIVE INTEGERS) Example:

15. A number written as the product of all its prime factorsproductprimefactors

16. prime number A whole number greater than 1 whose only factors are 1 and itselfwhole numberfactors Example 1,2, 3, 5, Not prime 4, 8, 12,

17. composite number A whole number that has more than two factorswhole number factors Example: 21 : 1, 3, 7, 21 Example: 4: 1, 2, 4

18. parallel lines Lines in a plane that never intersectLinesplaneintersect

19. perpendicular lines Two lines that intersect to form four right angleslinesintersectright angles

20. congruent Having the same size and shape Example: The triangles are congruent.

21. line of symmetry A line that divides a figure into two congruent parts congruent

22. similar figures Figures with the same shape but not necessarily the same size

23. NameSidesAngles Triangle33 Quadrilateral44 Pentagon55 Hexagon66 Heptagon77 Octagon88 Nonagon99 Decagon10

24. FACE A polygon that is a flat surface of a solid figurepolygonsolid figure

25. Right Triangle A RIGHT triangle has ONE right angle.

26. obtuse triangle A triangle that has one obtuse angle Example: triangleobtuse angle

27. Acute Triangle An ACUTE triangle has THREE acute angles.

28. The ratio of the circumference of a circle to its diameter ratiocircumferencediameter

29. circumference The distance around a circle Example: circle

30. Diameters - A DIAMETER of a circle is a chord that contains the center of the circle. Diameter CV, diameter DT, diameter GH, diameter EU, etc.....

31. Radius A line segment withline segment one endpoint at the center of a circle and the other endpoint on the circle

32. acute angle An angle that has a measure less than a right angle (less than 90°) Example: angleright angle

33. Straight Angle A STRAIGHT ANGLE is one whose measure is EXACTLY 180 DEGREES. A straight angle is made up of two opposite rays. Another important fact is that a straight angle forms a straight line.

34. Obtuse Angle An OBTUSE ANGLE is one whose measure is GREATER THAN 90 AND LESS THAN 180 DEGREES.

35. Right Angle A RIGHT ANGLE is an angle whose measure is EXACTLY 90 DEGRRES. Right angles are denoted by a small square in its interior.

36. VERTEX - The common point for both rays is called the Vertex.

37. Identify the Triangles Triangles are also classified according to their length. Scalene Triangle- no congruent sides Isosceles Triangle- two congruent sides Equilateral Triangle- three congruent sides

39. area The number of square units needed to cover a surface Example: The area is 9 square units.square units

40. Perimeter The distance around a figure 2 cm + 3 cm + 3 cm = 8 cm The perimeter of this figure is 8 centimeters

41. VOLUME The measure of the amount of space a solid figure occupies solid figure The volume of this figure is 24 cubic units

42. PRISM A solid figure that has two congruent, polygon-shaped bases, and other faces that are all rectanglessolid figurecongruent polygonbasesfacesrectangles

43. pyramid A solid figure with a polygon base and all other faces triangles that meet at a common vertexsolid figurepolygonbasefacestrianglesvertex

44. Associative Property The property that states that the way addends are grouped or factors are grouped does not change the sum or the productsum product 12 + (5 + 9) = (12 + 5) + 9 (9 x 8) x 3 = 9 x (8 x 3)

45. Commutative Property The property that states that when the order of addends or factors is changed, the sum or product is the samefactorssumproduct 9 + 4 = 4 + 9 6 x 3 = 3 x 6

46. greater than (>) A symbol used to compare two numbers, with the greater number given first Example: 8 > 6 8 is greater than 6.

47. FRACTION A number that names a part of a whole or a part of a group