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8th Grade Math Skill Practice

The Number System

Real Numbers
Identifying rational and irrational numbers
Convert between decimals and fractions or mixed numbers
Estimate positive and negative square and cube roots
Expressions & Equations

Exponents
Multiplication and division with exponents
Cube roots and square roots
Scientific Notation
Convert between standard and scientific notation
Multiply and divide numbers written in scientific notation
Proportional Relationships
Unit rates
Solve Linear Equations
Find the number of solutions
Word problems : solve equations
Solve Systems of Linear Equations
Solve a system of equations by graphing
Substitution and elimination
Word problems : solve a system of equations using substitution and elimination
Functions

Properties of Functions
Write a linear equation from a graph
Word problems : interpret the graph of a linear function
Compare linear functions: graphs, tables, and equations
Graph a line from an equation
Rate of change
Word problems : write linear functions
Geometry

Transformations
Rotations, reflections, and translations: graph the image
Reflection, rotation and translation: measure of angles
Reflection, rotation and translation: parallel lines
Congruence statements and corresponding parts
Dilations, translations, rotations, and reflections: find the coordinates
Similar figures: side lengths and angle measures
Angles, Parallel Lines, & Triangles
Interior and exterior angles of polygons
Pythagorean Theorem
Converse of the Pythagorean theorem: is it a right triangle?
Pythagorean theorem: find the length of the hypotenuse
Find the distance between two points
Volume
Volumes of cones, cylinders, and spheres
Statistics & Probability

Bivariate Data
Outliers in scatter plots
Constant rate of change
Use relative frequencies calculated for rows or columns