# Math

## Pre-K skills

- Count shapes - up to 5
- Inside and outside
- Same and different
- Wide and narrow
- Pennies, nickels, dimes, and quarters

#### See all 67 pre-K skills

## Kindergarten skills

- Number lines - up to 20
- Count groups of ten
- Skip-count by fives
- Identify halves, thirds, fourths
- More or less likely

#### See all 170 kindergarten skills

## First-grade skills

- Counting - up to 100
- Addition facts - sums up to 20
- Subtraction word problems - numbers up to 10
- Which bar graph is correct?
- Purchases: do you have enough money?

#### See all 199 first-grade skills

## Second-grade skills

- Ordinal numbers up to 100th
- Find the next row in a growing pattern
- Add and subtract numbers up to 100
- Which line graph is correct?
- Flip, turn, and slide

#### See all 260 second-grade skills

## Third-grade skills

- Multiplication tables up to 12
- Estimate sums
- Triangles: acute, right, and obtuse
- Show fractions: fraction bars
- What decimal number is illustrated?

#### See all 351 third-grade skills

## Fourth-grade skills

- Addition: fill in the missing digits
- Divisibility rules
- Create bar graphs
- Decimal number lines
- Calculate probability

#### See all 298 fourth-grade skills

## Fifth-grade skills

- Multiply two decimals using grids
- Add fractions with unlike denominators
- Subtract fractions with unlike denominators
- Create line graphs
- Area and perimeter of figures on grids

#### See all 324 fifth-grade skills

## Sixth-grade skills

- Prime factorization
- Multiply fractions: word problems
- Graph a two-variable equation
- Complementary and supplementary angles
- Volume of cubes and rectangular prisms

#### See all 305 sixth-grade skills

## Seventh-grade skills

- Add and subtract integers
- Find the percent: tax, discount, and more
- Similar figures and indirect measurement
- Perimeter, area, and volume: changes in scale
- Translations: find the coordinates

#### See all 280 seventh-grade skills

## Eighth-grade skills

- Estimate population size using proportions
- Surface area of spheres
- Write variable expressions for arithmetic sequences
- Solve equations involving like terms
- Solutions to inequalities

#### See all 305 eighth-grade skills

## Algebra 1 skills

- Greatest possible error
- Equations of horizontal and vertical lines
- Solve a system of equations by graphing
- Classify a system of equations
- Factor by grouping

#### See all 301 Algebra 1 skills

## Geometry skills

- Interior angles of polygons
- Truth tables
- SSS, SAS, ASA, and AAS Theorems
- Similar triangles and similarity transformations
- Angles in inscribed quadrilaterals

#### See all 209 Geometry skills

## Algebra 2 skills

- Solve a non-linear system of equations
- Introduction to complex numbers
- Find the center of a circle
- Reference angles
- Symmetry and periodicity of trigonometric functions

#### See all 305 Algebra 2 skills

## Precalculus skills

- Solve systems of linear inequalities by graphing
- Introduction to the complex plane
- Graph complex numbers
- Graph a resultant vector using the triangle method
- Graph a discrete probability distribution

#### See all 252 Precalculus skills

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