7th Grade MATH Vocabulary
A collection of words and phrases that you need to know for the SOL Test
Terms in this set (70)
Order doesn't matter, A + B = B + A
Grouping doesn't matter, (a+b)+c= a+(b+c)
a(b + c) = ab + ac
Adding "0" to a number doesn't change the number
Multiplying by "1" doesn't change the number
adding opposites results in "0"
Multiplying reciprocals results in "1"
one of a pair of numbers whose product is 1: when I multiply 2/3 times 3/2 I get 1
tells you multiply
tells you to add
tells you to subtract
tells you to divide
A mathematical sentence that contains less than, greater than, less than or equal to, greater than or equal to, or not equal
A mathematical statement that two expressions are equal.
A mathematical phrase that contains operations, numbers, and/or variables.
out of 100
A method or writing very large or very small numbers by using powers of 10
a sequence in which each term is found by adding the same number to the previous term
a sequence in which each term is found by multiplying the previous term by the same number
the difference between any two successive terms in an arithmetic sequence
the fixed number that you multiply each time in a geometric sequence
tells you how many times to multiply the base number times itself
the amount of space inside a 3-d object
The combined area on all surfaces of a 3-d object
A statement that two ratios are equal
The distance a number is from zero on a number line. ALWAYS POSITIVE
a letter used to represent an unknown number
the number in front of a variable
A term in an algebraic expression that does not contain variables
A number that when multiplied by itself equals a given number.
a comparison of two numbers, may be written as a fraction
a closed figure made of line segments
a 4 sided polygon
a quadrilateral with opposite sides parallel
a quadrilateral with four 90 degree angles
a quadrilateral with 4 congruent sides
a quadrilateral with four 90 degree angles and 4 congruent sides
A quadrilateral with one pair of parallel sides.
an angle that has exactly 90 degrees
an amount added to the cost of an item
an amount subtracted from the cost of an item...a sale amount
an amount added to the cost of a meal for the waitperson's service
A set of numbers which follow a pattern
a rule that when followed results in a sequence
the distance across the center of a circle
half way across the center of a circles
a box or a cube
a number times 1, a number times 2......
a number that divides evenly into another number
ie: factors of 6 are 1,2,3 and 6
a whole # that only has two factors; itself and 1
arranges data from smallest to biggest
arranges data from the biggest to the smallest
What we think will happen when we do something - flip a coin, roll a dice
what happens when we conduct trials - flip a coin and get 70 heads
fundamental counting principle
Uses multiplication of the number of ways each event in an experiment can occur to find the number of possible outcomes in a sample space.
A diagram used to show the total number of possible outcomes
Having the same measure
The act of changing the position of a shape on a coordinate plane
slide to a new position without changing orientation, size or shape
a turn with changing size or shape...orientation changes
a flip over an axis..size and shape don't change but orientation and location change