Examples for

Common Core Math: Grade 8

In eighth grade, students expand their knowledge of rational numbers to include irrational numbers such as pi or the square root of 2, filling out the entire set of real numbers. Students use exponent laws to simplify expressions and perform computations using scientific notation. Students also solve equations, including those with exponents or radicals, and systems of two equations. The concept of functions is introduced. Students identify and represent functions numerically, graphically and algebraically and use linear functions to model associations in two-dimensional data. Students also explore congruence and similarity in the context of transformations of two-dimensional figures, apply the Pythagorean theorem, and compute volumes of cylinders, cones and spheres.

Number System

Classify irrational numbers and continue manipulating and ordering rational numbers.

Classify numbers (CCSS.Content.Math.8.NS.A.1):

Convert between decimals and fractions (CCSS.Content.Math.8.NS.A.1):

Order a list of numbers (CCSS.Math.Content.8.NS.A.2):

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Define, construct and compare functions.

Recognize and interpret equations of linear functions (CCSS.Math.Content.8.F.B.4):

Determine the equation of a line (CCSS.Math.Content.8.F.B.4):

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Expressions & Equations

Manipulate expressions, including those with exponents; solve equations and systems of equations; and use scientific notation.

Use exponent laws to simplify expressions (CCSS.Math.Content.8.EE.A.1):

Solve an equation (CCSS.Content.Math.8.EE.C.7):

Solve a system of equations (CCSS.Content.Math.8.EE.C.8):

Convert between standard and scientific notation (CCSS.Content.Math.8.EE.A.3):

Perform computations with scientific notation (CCSS.Content.Math.8.EE.A.4):

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Statistics & Probability

Analyze and model associations in datasets.

Create a scatter plot (CCSS.Content.Math.8.SP.A.1):

Model data with a linear association (CCSS.Content.Math.8.SP.A.2):

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Step-by-Step Solutions for Algebra

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Free Unlimited Algebra Practice Problems


  • Algebra
  • Common Core Math: Grade 6
  • Common Core Math: Grade 7
  • Common Core Math: High School
  • Elementary Math
  • Geometry

    Compute volumes of solids and apply the Pythagorean theorem.

    Solve for a missing side length of a right triangle (CCSS.Math.8.G.B.7):

    Compute the distance between two points (CCSS.Math.8.G.B.8):

    Find the volume of a cylinder (CCSS.Content.Math.8.G.C.9):

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