230-235
8-A. 9 Classify numbers
8-F. 7 Evaluate negative exponents
8-F.12 Evaluate expressions using properties of exponents
8-F.14 Square roots of perfect squares
8-F.16 Positive and negative square roots
8-F. 17 Estimate positive and negative square roots
8-F.19 Cube roots of perfect cubes
8-F. 21. Solve equations using cube roots
Khan Academy: Mappers
8-F.13 Identify equivalent expressions involving exponents
8-G. 3. Multiply numbers written in scientific notation