table

glossary

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1.
Associative (grouping) Property: the order in which you add or multiply THREE OR MORE numbers does not change the outcome. Example: a+(b+c)=(a+b)+c

2.
Common Factor: a number that is a factor of two or more numbers

3.
Commutative (order) Property: the order in which you add or multiply two numbers does not change the outcome. Example: a**b=b**a

4.
Composite Number: a whole number that is exactly divisible by more than two factors

5.
Congruent: figures that have the same size and shape

6.
Denominator: the part of a fraction below the line, which tells how many equal parts there are in the whole

7.
Difference: the result of subtraction

8.
Distributive Property: the product of a number and the sum of two numbers is equal to the sum of the two products. Example: a**(b+c) = (a**b)+(a*c)

9.
Divisible: when you divide, the remainder is zero

10.
Equivalent: equal in value, but in a different form

11.
Equivalent Fractions: two or more fractions that represent the same number

12.
Estimate: to find an answer that is close to the exact answer

13.
Expanded Form: a way to write numbers that shows the value of each digit

14.
Exponent: a number that indicates how many times the base appears as a factor

15.
Exponential Form: a symbolic way of showing how many times a number is used as a factor

16.
Factor: one of two or more numbers or expressions that are multiplied to form a product

17.
Fraction: a number used to name a part of the group or part of a whole

18.
Greatest Common Factor (GCF): the greatest number that divides evenly into two or more numbers

19.
Improper Fraction: a fraction with its numerator equal to or greater than its denominator

20.
Integers: the set of numbers containing zero, the natural numbers, and their opposites

21.
Leading Digit: the digit farthest to the left, having the greatest value

22.
Least Common Multiple (LCM): the smallest number that is a common multiple of two or more numbers

23.
Like Fractions: fractions that have the same denominator

24.
Lowest Terms (or Simplest Form): when the numerator and denominator of a fraction have no common factors other than 1

25.
Mean: average; calculated by dividing the number of items in a set by the sum of those numbers

26.
Median: the MIDDLE number when the data is ordered from least to greatest

27.
Mixed Number: a number written as a whole number and a fraction

28.
Mode: the number(s) that occurs the MOST in a set of data

29.
Multiple: the product of that number and any whole number

30.
Natural Numbers: the counting numbers

31.
Number Line: a line with equal distances marked off to represent numbers

32.
Numerator: the number written above the fraction line that tells how many equal parts of the whole are being counted

33.
Place Value: a system of numeration in which the value of a digit depends on its position in the numeral

34.
Prime Factorization: expressing a composite number as the product of its prime factors

35.
Prime Number: a whole number greater than one that has only two factors, 1 and itself

36.
Product: the result of multiplication

37.
Proper Fraction: a fraction whose numerator is less than its denominator

38.
Quotient: the result of division

39.
Range: the difference between the greatest number and the least numbers in a set of data

40.
Ratio: a comparison of two numbers using division

41.
Round: to estimate a number by replacing it with a number expressed to the nearest ten, hundred, thousand, and so on

42.
Simplify: to divide the numerator and denominator of a fraction by the greatest common factor

43.
Standard Form: a number written with one digit for each place value

44.
Sum: the result of addition

45.
Term: each number in a sequence or pattern

46.
Unlike Fractions: fractions that have different denominators

47.
Variable: a symbol such as a box or a letter used to represent an unknown value

48.
Whole Numbers: set of natural numbers and zero

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