# Math

## Second-grade skills

- Ways to make a number using subtraction
- Time words: o'clock, half, quarter
- Compare clocks
- Which line graph is correct?
- Which customary unit of volume is appropriate?

#### See all 254 second-grade skills

## Third-grade skills

- Convert between standard and expanded form
- Addition, subtraction, multiplication, and division word problems
- Similar and congruent
- Triangles: acute, right, and obtuse
- Add and subtract decimals

#### See all 308 third-grade skills

## Fourth-grade skills

- Addition: fill in the missing digits
- Convert between metric and customary units
- Time zones
- Rotational symmetry
- Patterns of equivalent fractions

#### See all 290 fourth-grade skills

## Fifth-grade skills

- Area of triangles
- Greatest common factor
- Divide fractions by whole numbers
- Write variable expressions
- Sale prices

#### See all 320 fifth-grade skills

## Sixth-grade skills

- Integers on number lines
- Solve one-step equations with whole numbers
- Add and subtract like terms
- Graph linear functions
- Multiply fractions: word problems

#### See all 293 sixth-grade skills

## Seventh-grade skills

- Scientific notation
- Put rational numbers in order
- Create histograms
- Similar figures and indirect measurement
- Identify linear and nonlinear functions

#### See all 261 seventh-grade skills

## Eighth-grade skills

- Factors
- Estimate population size using proportions
- Distance between two points
- Volume of prisms and cylinders
- Slopes of parallel and perpendicular lines

#### See all 285 eighth-grade skills

## Algebra 1 skills

- Graph solutions to absolute value equations
- Write and solve inverse variation equations
- Equations of horizontal and vertical lines
- Add and subtract radical expressions
- Rational functions: asymptotes and excluded values

#### See all 281 Algebra 1 skills

## Geometry skills

- Construct the midpoint or perpendicular bisector of a segment
- Hypotenuse-Leg Theorem
- Midsegments of triangles
- Proving a quadrilateral is a parallelogram
- Properties of trapezoids

#### See all 209 Geometry skills

## Algebra 2 skills

- Determinant of a matrix
- Descartes' Rule of Signs
- Find the focus or directrix of a parabola
- Find the vertices of a hyperbola
- Find the foci of a hyperbola

#### See all 298 Algebra 2 skills

## Precalculus skills

- Rational root theorem
- Graph complex numbers
- Convert complex numbers between rectangular and polar form
- Find conditional probabilities
- Identify discrete and continuous random variables

#### See all 237 Precalculus skills

## Coming soon

We're constantly adding new skills and problem types for all grade levels! Learn more