8th Grade Math STAAR Review

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

How do you calculate the perimeter of a triangle?

Back

Perimeter = side1 + side2 + side3.

Tags

CCSS.3.MD.D.8

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Tags

CCSS.8.G.B.8

Front

Define a variable in algebra.

Back

A symbol used to represent an unknown value.

Tags

CCSS.6.EE.A.2B

Front

What is the slope-intercept form of a linear equation?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

How do you find the mean of a set of numbers?

Back

Mean = (sum of all values) / (number of values).

Tags

CCSS.6.SP.B.5C

Front

What is the difference between a rational and an irrational number?

Back

Rational numbers can be expressed as a fraction, while irrational numbers cannot.

Tags

CCSS.8.NS.A.1

Front

What is the order of operations in mathematics?

Back

PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Tags

CCSS.7.NS.A.3

Front

How do you solve a one-step equation?

Back

Isolate the variable by performing the inverse operation on both sides of the equation.

Tags

CCSS.6.EE.B.7

Front

What is a function in mathematics?

Back

A relation where each input has exactly one output.

Tags

CCSS.8.F.A.1