Ratios and Rates
This type of rate compares a quantity to exactly 1 unit of another quantity, such as 60 miles per 1 hour.
What is a Unit Rate
In the expression $5x + 3$, this term refers to the symbol (usually a letter) used to represent an unknown number.
What is a variable?
The distance a number is from zero on a number line, which is always written as a positive value using two vertical bars like |-5| = 5.
What is absolute value?
The total distance around the outside edge of a 2D shape, found by adding all its side lengths together.
What is the perimeter?
An equation stating that two ratios are equal to each other, such as 1/2 = 4/8.
What is a proportion?
This number stands directly in front of a variable to show multiplication, such as the number 7 in $7y$.
What is a coefficient?
The set of whole numbers and their opposites, including negative numbers, zero, and positive whole numbers (without fractions or decimals).
What are integers?
The total amount of two-dimensional space inside a flat shape, measured in square units.
What is area?
When two ratios express the same relationship or reduce to the same simplest form, they are called this.
What are equivalent (ratios)?
Unlike an expression, this math phrase always includes an equals sign ($=$) to show that two amounts are identical in value.
What is an equation?
Two numbers that are the exact same distance from zero on a number line, but on opposite sides (such as -7 and 7).
What are opposites (or additive inverses)?
The amount of 3-dimensional space contained inside a solid shape, measured in cubic units.
What is volume?
This 10-letter math word means "per hundred" and represents a ratio that compares a number to 100.
What is a percentage (or percent)?
This property lets you multiply a single term by two or more terms inside parentheses, transforming a(b + c) into ab + ac.
What is the distributive property?
The largest factor that two or more numbers share, often used to simplify fractions to their lowest terms.
What is the greatest common factor (or GCF)?
A quadrilateral with exactly one pair of parallel sides.
What is a trapezoid?
This constant represent the multiplier between proportional quantities.
What is a unit rate?
In the algebraic term x4, the small number 4 is called this, telling you how many times to multiply the base by itself.
What is an exponent (or power)?
The flip side of a fraction, found by swapping its numerator and denominator—multiplying a fraction by this always equals 1.
What is a reciprocal (or multiplicative inverse)?
The total sum of the areas of all the flat outer faces that make up a 3D figure.
What is surface area?