# Math 7th Review

## 40 terms · Review of 7th grade math vocabulary terms - 40 total in sets of 5

average

middle number

### Mode

the number that occurs most often

### Range

difference between the highest and lowest numbers

### Outlier

a value much greater or much less than the others in a data set

### Order of Operations

the order in which math operations should be done

### Upper Quartile

median of the upper half of a data set

### Lower Quartile

median of the lower half of a data set

### Box-n-Whisker Plot

a graph that divides data into 4 parts

### Interquartile Range

the difference between the upper and lower quartiles

### Scatter Plot

a graph that shows the relationship between two sets of data

### Transformation

change in position or size of a figure

slide

turn

flip

### Dilation

changes the size of an object, but not the shape

### Inverse Operation

opposite operations that undo each other

### Rational Number

a number that can be written as a fraction

### Integer

whole numbers and their opposites

### Equation

a mathematical sentence with an equal sign

### Expression

a combination of numbers, variables, and operations without an equal sign

a(b+c) = ab + ac

### Absolute Value

distance from zero

### Variable

a letter used to represent a number

y = kx

y = k/x

### Polyhedron

a solid figure with faces that are polygons

### Cross Section

2D shape created after slicing a solid figure

### Bisect

cut into 2 equal parts

### Parallel

lines in the same plane that do not intersect

### Perpendicular

two lines that intersect to form right angles

### Scale Factor

the ratio used to enlarge or reduce similar figures

### Proportional

two ratios that are equal

### Ratio

a comparison of two numbers

### Similar

same shape; different size

### Congruent

same shape, same size