Term | Definition |
Commutative Property of Addition | changing the order of the addends does not change the sum (4+3 or 3+4) |
Identity Property of Addition | The sum of any number and 0 is equal to the initial number. (4+0=4) |
Identity Property of Multiplication | the product of any number and 1 is equal to the initial number (8x1=8) |
Zero Property of Multiplication | if zero is a factor in multiplication, the product is 0 |
Associative Property of Addition | The grouping of addends does not affect their sum |
variable | a symbol (usually a letter) that represents a number that is not given (unknown) |
counting numbers | number used to count (1,2,3,4...) |
whole numbers | members of the set (0,1,2,3,...) |
Integers | set of counting numbers, their opposites, and zero |
mean | average |
prime number | counting numbers that have exactly 2 factors: itself and 1 |
histogram | method of displaying a range of data. A special type of bar graph that displays data in intervals of equal size with no space between bars |
line | a straight collection of points extending in opposite directions without end |
ray | a part of a line that begins at a point and continues without end in one direction |
segment | a part of a line with two distinct points |
perimeter | the distance AROUND a closed, flat shape |
minuend | a number from which another number is subtracted (first number in a subtraction problem) |
subtrahend | a number that is subtracted (second number in a subtraction problem) |
dividend | the number that is divided |
divisor | the number by which the dividend is divided |
quotient | the answer to a division problem |
difference | the result of subtraction |
addends | numbers that are added together |
sum | the result of addition |
product | the result of multiplication |