Khan Academy

Multiplying & dividing powers (integer exponents) (K-A)

Powers of products & quotients (integer exponents) (K-A)

Powers of zero (K-A)

Approximating with powers of 10 (K-A)

Multiplying multiples of powers of 10 (K-A)

Scientific notation example: 0.0000000003457 (K-A)

Scientific notation examples (K-A)

Scientific notation review (K-A)

Multiplying & dividing in scientific notation (K-A)

Multiplying three numbers in scientific notation (K-A)

Scientific notation word problem: red blood cells (K-A)

Simplifying in scientific notation challenge (K-A)

Scientific notation word problem: speed of light (K-A)

Subtracting in scientific notation (K-A)

Scientific notation word problem: U.S. national debt (K-A)

Equation with the variable in the denominator (K-A)

Equation with variables on both sides: fractions (K-A)

Equations with variables on both sides: 20-7x=6x-6 (K-A)

Intro to equations with variables on both sides (K-A)

Equations with parentheses-video (K-A)

Multi-step equations review (K-A)

Creating an equation with infinitely many solutions (K-A)

Creating an equation with no solutions (K-A)

Number of solutions to equations-video (K-A)

Worked example: number of solutions to equations (K-A)