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69 Cards in this Set
- Front
- Back
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a way of writing a number that uses digits and place value
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standard form
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numbers that are easy to compute mentally
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compatible numbers
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2 + 3 = 3 + 2
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Commutative Property of Addition
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2xy = 2yx
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Commutative Property of Multiplication
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2 + (3 +4) = (2 + 3) + 4
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Associative Property of Addition
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2 • (3 • 4) = (2 • 3) • 4
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Associative Property of Multiplication
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3 • 1 = 3
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Identity Property of Multiplication
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2 + 0 = 2
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Identity Property of Addition
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The agreed upon steps to simplify mathematical expressions
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Order of Operations
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The Order of Operations
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Parentheses / Grouping Symbols
Exponents Multiply/Divide from left to right Add/Subtract from left to right |
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A mathematical phrase that contains numbers and operations symbols (but no equal sign)
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expression
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Writing a number as a sum of the place values of each digit.
0.5 + 0.04 |
expanded form
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a way of estimating where you add the "engine" and you round the "caboose" and then add them both together
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front end estimation
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the sum of the data divided by the number of data items
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mean
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a data item that is much greater or less than the other data items
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outlier
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the middle number in a set of ordered data
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median
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the data item(s) that appear the most often
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mode
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Color Tally Frequency
Red III 3 Bllue II 2 |
Frequency Table
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X X
X X X 1 2 3 |
Line Plot
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The difference between the least and greatest values in a data set (biggest - smallest)
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range
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uses vertical or horizontal bars to show comparisons
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bar graph
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uses a series of line segments to show changes in data
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line graph
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best graph to compare number of boys and girls in a class
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bar graph
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best graph to show your height since birth
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line graph
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a table made up of rows and columns used to organize data
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spreadsheet
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a box in a spreadsheet where a specific column and row meet
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cell
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2 I 2, 3, 4, 4, 5
3 I 0, 0, 1 4 I 0, 1, 5, 7 |
stem-and-leaf plot
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2 ways a graph might be misleading
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- doesn't start at 0
- has unequal intervals |
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each number in a pattern
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term
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the "formula sentence" for writing the rule for a pattern
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start with ____ and then _____ repeatedly
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a prediction about what may happen
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conjecture
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a set of numbers that follow a pattern
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sequence
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a mathematical phrase with only numbers and operations symbols
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numerical expression
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a symbol (letter) that can represent one or more numbers
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variable
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a mathematical expression with one or more variables
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algebraic expression (or variable expression)
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when you replace a variable with a number and then simplify by using the order of operations
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evaluate
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a mathematical sentence that has an equal sign
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equation
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an equation with one or more variables
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open sentence
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value of the variable which makes an equation true
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solution
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mathematical operations which undo each other
(ex. addition/subtraction) |
inverse operations
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2(3 + 2) = 2(3) + 2(2)
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Distributive Property
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a whole number is _______ by a second whole number if the first number can be divided by the second number with a remainder of 0.
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divisible
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a whole number that ends in 0,2,4,6,8
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even number
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a whole number that ends in 1,3,5,7,9
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odd number
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divisibility rule for 2
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ends in 0,2,4,6,8
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divisibility rule for 3
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sum of the digits is divisible by 3
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divisibility rule for 5
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ends in 0 or 5
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divisibility rule for 9
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sum of the digits is divisible by 9
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divisibility rule for 10
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ends in 0
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a way to show repeated multiplication (3 • 3 • 3)
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exponent
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a whole number that divides a nonzero whole number with a remainder of 0. (it goes into that number evenly)
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factor
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a whole number greater than 1 with more than two factors
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composite number
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a whole number with exactly two factors, 1 and itself
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prime number
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when you write out a number as the product of its prime numbers
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prime factorization
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a factor that two or more numbers share
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common factor
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the largest factor shared by two or more numbers
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greatest common factor
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fractions that name the same amount
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equivalent fractions
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a way of writing a fraction so that the only common factor of the numerator and denominator is 1
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simplest form
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has a numerator that is less than its denominator (won't tip over)
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proper fraction
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has a numerator that is greater than or equal to its denominator (will tip over)
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improper fraction
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shows the sum of a whole number and a proper fraction
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mixed number
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the product of a number and a nonzero whole number
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multiple
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a number that is a multiple of each of two or more numbers
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common multiple
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a number that is the smallest multiple that two numbers share
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least common multiple
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the least common multiple of two or more denominators of fractions
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least common denominator
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a decimal that stops
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terminating decimal
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a decimal that repeats a digit or group of digits infinitely
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repeating decimal
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a convenient number used to replace fractions that are less than 1 when estimating (0, 1/2, 1)
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benchmark
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the time between two events
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elapsed time
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