## Gr9 Khan Academy Practice sets

**Number Sense & Algebra**

NSA1 Exponents & Proportions

*Writing proportions**Solving proportions**Proportion word problems*- Ratio word problems
*Comparing rates (unit rate)**Rate problems*- Rate problems 2
- Percent word problems
- Discount, tax, and tip word problems
- Markup and commission word problems
- Rational number word problems
*Exponents**(basic)**Exponents**Negative Exponents**Variable expressions with exponents**Multiply monomials**intro*- Multiply monomials
*Multiply & divide powers (integer exponents)**Powers of products & quotients (integer exponents)*- Properties of exponents challenge (integer exponents)

NSA2 Expressions & Solving Equations

*Order of operations**Combining like terms with negative coefficients**Combining like terms with negative coefficients & distribution*- Combining like terms with rational coefficients
- Equivalent expressions
*Add polynomials**Subtract polynomials**Add & subtract polynomials*- Multiply monomials by polynomials: area model *
- Multiply monomials by polynomials
*One-step addition & subtraction equations**One-step addition & subtraction equations: fractions & decimals**One-step multiplication & division equations**One-step multiplication & division equations: fractions & decimals*- Two-step equations

**Linear Relations**

LR2: Characteristics of Linear Relations

LR3: Representing Linear Relationships

**Analytic Geometry**

AG1: Forms of Linear Equations

**Measurement & Geometry**

MG1: Optimization

There is no Khan Academy practice for this topic exactly, but click here for a textbook section including some practice problems at the end.

Some related skills you might need practice with:

MG2: Perimeter, Area, Surface area & Volume

MG3: Geometric Relationships