# Math

## Pre-K skills

- Identify circles, squares, and triangles
- Count shapes (up to 5)
- Represent numbers (up to 5)
- Inside and outside
- Pennies, nickels, dimes, and quarters

#### See all 42 pre-K skills

## Kindergarten skills

- Count to 5
- Subtract with pictures - numbers up to 5
- Put numbers up to 10 in order
- More or less likely
- Geometry of everyday objects

#### See all 129 kindergarten skills

## Second-grade skills

- Skip-counting puzzles
- Counting patterns - up to 1,000
- Identify repeated addition in arrays: sums to 10
- Place value models - tens and ones
- Perimeter - word problems

#### See all 247 second-grade skills

## Third-grade skills

- Multi-step word problems
- Create line plots
- Similar and congruent
- Show fractions: area models
- Mean, median, mode, and range

#### See all 277 third-grade skills

## Fourth-grade skills

- Circle graphs
- Use area and perimeter to determine cost
- Patterns of equivalent fractions
- Decompose fractions
- Add and subtract decimals: word problems

#### See all 280 fourth-grade skills

## Fifth-grade skills

- Multiply two decimals using grids
- Add fractions with unlike denominators
- Multiply fractions - with models
- Write variable expressions
- Sale prices

#### See all 310 fifth-grade skills

## Sixth-grade skills

- Unit prices: which is the better buy?
- Add and subtract like terms
- Create double bar graphs
- Divide fractions by whole numbers in recipes
- Complementary and supplementary angles

#### See all 289 sixth-grade skills

## Seventh-grade skills

- Estimate tips
- Perimeter, area, and volume: changes in scale
- Pythagorean theorem: word problems
- Find the slope of a graph
- Make predictions

#### See all 256 seventh-grade skills

## Eighth-grade skills

- Evaluate negative exponents
- Estimate population size using proportions
- Volume and surface area of spheres
- Write variable expressions for arithmetic sequences
- Add and subtract polynomials using algebra tiles

#### See all 273 eighth-grade skills

## Algebra 1 skills

- Identify independent and dependent variables
- Identify functions: vertical line test
- Write and solve inverse variation equations
- Write an equation for a parallel or perpendicular line
- Characteristics of quadratic functions

#### See all 275 Algebra 1 skills

## Geometry skills

- Exterior Angle Theorem
- Hypotenuse-Leg Theorem
- Similarity rules for triangles
- Tangent lines
- Inscribed angles

#### See all 202 Geometry skills

## Algebra 2 skills

- Inverse of a matrix
- Quotient property of logarithms
- Power property of logarithms
- Write equations of circles in standard form using properties
- Find the vertices of a hyperbola

#### See all 288 Algebra 2 skills

## Precalculus skills

- Inverse of a 3 x 3 matrix
- Find the eccentricity of an ellipse
- Find the modulus and argument of a complex number
- Find the component form of a vector
- Partial sums of arithmetic series

#### See all 214 Precalculus skills

## Coming soon

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