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Flashcards in Math Concepts Deck (61)
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1

all the angles in a triangle add up to

180 degrees

2

all angles of a quadrilateral add up to

360 degrees

3

the formula for perimeter is

length + length + width + width

4

the formula for area is

length times width

5

the formula for volume is

Length times width times height

6

on a place value chart the values increase by a factor of

by tens

7

what is a multiple

it is a answer to a multiplication question

8

Acute angle

a positive angle measuring more than 0 degrees but less that 90 degrees

9

acute triangle

a triangle in which all three angles measure less that 90 degrees

10

angle

the point of intersection of two rays or line segments

11

area

the space within a region measure in square units

12

bar graph

a graph that displays data using bats of equal width on a grid

13

commutative property of addition

the order in which numbers are added does not change the sum of the numbers

14

commutative property of multiplication

the order in which numbers are multiplied does not change the product of the numbers

15

compatible numbers

numbers that are close to the actual numbers but are easier to mentally add, subtract, multiply or divide

16

composite number

a number with a minimum of three factors including 1 and itself

17

congruent

having the same shape and size

18

constant

a term that does not change

19

continuous data

data that can take on any value within a range

20

discrete data

data with a limited number of possible values.

21

what is an example of discrete data

months of the year or days of the week

22

double bar graph

a graph used to make comparisons between two sets of data

23

equilateral triangle

a triangle with three sides of equal length and three angles of equal measure

24

experimental probability

the probability of any event determined by the results of an experiment

25

expression

a mathematical statement that may use numbers, variables, or both numbers and variables.

26

What does an expression not contain?

an equal sign

27

factor

a number that divides evenly into another number

28

factor tree

a method used to diagram the process of prime factorization

29

greatest common factor

the factor with the greatest value common to two or more numbers

30

improper fraction

a fraction whose numerator is greater than the denominator

31

integer

all positive whole numbers, the additive inverses of the whole numbers and zero

32

interior angle

an angle found inside a shape

33

inverse operation

an operation that has the opposite effect of the operation in an equation. Addition and subtraction are the inverse operations of each other. Multiplication and division are the inverse operations of each other

34

isosceles triangle

a triangle that has two sides that are equal and two angles that are equal

35

line graph

a graph where data points are connected with line segments to show change over time

36

lowest common multiple

the multiple with the least value that two numbers

37

mixed number

a number made up of a whole number and a proper fraction

38

multiple

the product of any given whole number

39

obtuse angle

an angle measuring more than 90 degrees but less than 180

40

obtuse triangle

a triangle in which one of the angles measures more than 90 degrees but less than 180 degrees

41

pattern

a list of numbers that follow a certain sequence

42

percentage

a fraction or ratio with a denominator of 100

43

perimeter

the measure of the distance around a closed two dimensional figure

44

polygon

a closed two dimensional shape with three or more straight line segments

45

prime number

a whole number with only 2 factors: itself and 1

46

ratio

a comparison of two or more quantities having similar units

47

reflection

a reflection is a transformation in which a figure is flipped along a line of symmetry to create a congruent image

48

reflecting angle

an angle whose measure is between 180 and 360

49

right angle

an angle measuring 90 degrees

50

right triangle

a triangle that has on right angle of 90 degrees

51

rotation

a transformation in which an image is turned around a fixed point

52

rounding

a process of replacing a number by an approximate value of that number

53

scalene triangle

a triangle with three sides of different lengths and three angles of different measures

54

straight angle

an angle measuring 180 degrees

55

table of values

a chart showing the relationship between x and y values

56

term

the value of a number in a given pattern

57

term number

the position of a term within a given pattern

58

theoretical probability

the change of an outcome happening under ideal circumstances

59

translation

a transformation that moves a point or image from one position to another along a vertical, horizontal or diagonal line

60

variable

a symbol that stands for an unknown number in an equation

61

volume

the amount of space taken up by a three dimensional shape, usually expressed in cubic units