# Math

## Kindergarten skills

- Skip-count by fives
- Left, middle, and right
- Identify halves, thirds, fourths
- Tall and short
- Holds more or less

#### See all 131 kindergarten skills

## First-grade skills

- Counting tens and ones - up to 99
- Adding three numbers
- Ten more or less
- Count sides and vertices
- Reading clocks

#### See all 180 first-grade skills

## Second-grade skills

- Skip-counting puzzles
- Add multiples of 10
- Fact families
- How much more to make a dollar?
- Customary units of length: word problems

#### See all 254 second-grade skills

## Third-grade skills

- Estimate sums
- Compare and convert metric units of length
- Identify fractions on number lines
- What decimal number is illustrated?
- Mean, median, mode, and range

#### See all 308 third-grade skills

## Fourth-grade skills

- Word problems with extra or missing information
- Add and subtract mixed customary units
- Time zones
- Area of squares and rectangles
- Add up to 4 fractions with denominators of 10 and 100

#### See all 290 fourth-grade skills

## Fifth-grade skills

- Convert fractions to decimals
- Prime and composite numbers
- Multiply fractions by whole numbers using number lines
- Multiply two fractions using models
- Stem-and-leaf plots

#### See all 320 fifth-grade skills

## Sixth-grade skills

- Compare and order integers
- Estimate square roots
- Working with temperatures above and below zero
- Classify quadrilaterals
- Proportions

#### See all 293 sixth-grade skills

## Seventh-grade skills

- Square roots of perfect squares
- Do the ratios form a proportion?
- Find the percent: tax, discount, and more
- Estimate tips
- Model and solve equations using algebra tiles

#### See all 261 seventh-grade skills

## Eighth-grade skills

- Multiply numbers written in scientific notation
- Converse of the Pythagorean theorem: is it a right triangle?
- Volume and surface area of spheres
- Volume and surface area of similar solids
- Solve two-step linear equations

#### See all 285 eighth-grade skills

## Algebra 1 skills

- Identify independent and dependent variables
- Point-slope form: write an equation
- Simplify radical expressions
- Add and subtract radical expressions
- Rational functions: asymptotes and excluded values

#### See all 281 Algebra 1 skills

## Geometry skills

- Perpendicular Bisector Theorem
- Construct the midpoint or perpendicular bisector of a segment
- Congruency in isosceles and equilateral triangles
- Proving a quadrilateral is a parallelogram
- Perimeter of polygons with an inscribed circle

#### See all 209 Geometry skills

## Algebra 2 skills

- Linear programming
- Graph circles
- Find the center, vertices, or co-vertices of an ellipse
- Law of Sines
- Law of Cosines

#### See all 298 Algebra 2 skills

## Precalculus skills

- Identify inverse functions
- Graph complex numbers
- Partial sums of arithmetic series
- Identify discrete and continuous random variables
- Find probabilities using the binomial distribution

#### See all 237 Precalculus skills

## Coming soon

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