keep change change (KCC):
KEEP the sign of the first number CHANGE subtraction to addition CHANGE the sign of the second number *this is for SUBTRACTION only
A denominator that is the same in two or more fractions.
additive inverse property
Any number added to its negative will equal zero...example -8 + 8 = 0
Breaking down a composite number until all of the factors are prime
greatest common factor
The largest factor that two or more numbers have in common.
chance that something will happen
Divisible by 1 or itself
a sequence in which each term is found by adding the same number to the previous term
The lowest form of a fraction.
least common denominator
the least common multiple of the denominators of the fractions
A transformation that "flips" a figure over a mirror or reflection line.
an equation having two different operations
a quadrilateral whose opposite sides are both parallel and equal in length
A pair of numbers that give the location of a point on a x and y grid. for example graph (3, 2)
an equation that requires only one step to solve...one operation
the point (0,0) where the x-axis and the y-axis intersect in a coordinate plane
the answer to a division problem
The distance a number is from zero on a number line. ALWAYS POSITIVE
switch and add
Negative or positive whole number
answer to an addition problem
The smallest number in a data set (box & whisker).
The difference between the upper and lower quartiles.
The number that occurs most often in a set of data
switch and subtract
the horizontal axis...left to right
the greatest place value common to all the data that is written to the left of the line in a stem-and-leaf-plot
the vertical axis on a coordinate plane...top to bottom
a mathematical sentence involving <, >, or = plus < or >
to divide into different parts or sections
a group of symbols that make a mathematical statement....example 8 + 7
multiplication. For example the product of 2 and 3 is 6.
the answer to a subtraction problem
a grouping of a number of similar things
the second greatest place value of data in a stem and leaf plot
a statement that two expressions are equivalent. For example, 3 x 9 = 27 and 8+x=10
a comparison of two numbers by division
Any data point that sticks out. NOT all data sets have one.
The middle number in a set of numbers that are listed in order
A ratio of two numbers measured in different units.
the arithmetic average of a distribution, obtained by adding the scores and then dividing by the number of scores
subtract the smallest from the biggest number in the data
adding all the numbers to find the total
the difference between two numbers on the scale
Includes all numbers
The distance around a figure
the space inside a shape
Order of operations:
the order in which operations in an expression to be evaluated are carried out. 1. parentheses 2. exponets 3. multiplication and divison 4. addition and subtraction
a letter or other symbol that represents a number
a rate where the comparison is to one unit...example 99 cents per egg
numbers you say when you skip count. Multiples of 2 are: 2,4,6,8,...
the largest number of a set of data
The median of the upper half of a set of data.
replace, To put a number in place of a variable
The median of the lower half of data (box & whisker).
Numbers that are multiplied together to get a product ex. factors of 52 are 2, 4, 13, and 26
a ratio that compares a number to 100.
The ability of a figure to be rotated less than a full circle and exactly match its original image
a three-sided polygon
a quadrilateral with exactly one pair of parallel sides
When the sum of the measures of a pair of angles add up to 180°
when three sides of one triangle are congruent to three sides of another triangle
a line that intersects two or more lines
two angles whose sides form two pairs of opposite rays
Similar triangles have the same shape: corresponding angles are equal and corresponding sides are proportional
a four-sided polygon
a triangle with 1 right angle
a line that divides a figure into 2 halves that match exactly when the figure is folded on that line
lines in the same plane that never intersect
a flat shape with many straight sides and angles
a parallelogram with four equal sides
sides, 1 included angle
triangle with two congruent sides....third side is isolated
measuring between 90 and 180 degrees
intersecting at or forming right angles
A quadrilateral in which the opposite sides are parallel, all angles are 90 degrees
A quadrilateral with 4 sides that are equal and has all 90 degree angles
2 angles 1 included side...all equal
2 triangles are congruent if and only if all pairs of corresponding sides and angles are congruent
all sides congruent
alternate interior angles:
angles are on opposite sides of the transversal and on the inside of the given lines
Two angles whose sum is 90 degrees
angles in the same place on different lines
alternate exterior angles:
Angles that lie outside a pair of lines and on opposite sides of a transversal.
an angle that is less than 90 degrees
the act of rotating as if on an axis
a whole number greater than 1 that has more than two factors
a sequence in which each term is found by multiplying the previous term by the same number
movements of geometric figures
numbers greater than zero
numbers less than zero
keep change flip (KCF):
keep the first fraction, change division to multiplication, flip the second fraction... use when dividing fractions
least common multiple:
The smallest multiple (other than zero) that two or more numbers have in common.
A transformation that "slides" each point of a figure the same distance in the same direction.
two numbers that have the same absolute value but have different signs