Sixth grade math

Skills:
- Whole numbers
- Multiplication and division
- Integers
- Rational numbers
- Operations with integers
- One- and two-variable equations
- One-variable inequalities
- Exponents and square roots
- Geometry
- Number theory
- Problem solving and estimation
- Ratios, proporations and percents
- Decimals
- Fractions and mixed numbers
- Measurement
- Time and money
- Data and graphs
- Probability