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Grade 8 - Numbers, Operations and Relationships
Standard 8.NOR.1.2.3 - Practice substituting in numbers to evaluate variable expressions with squares and square roots.
Exponents. Calculations using numbers in exponential form • Establish general laws of exponents, limited to: - natural number exponents - a to the m power x an = a to the m power + n - a to the m power ÷ an = a to the m power – n, if m > n - (a to the m power)n = a to the m power x n - (a x t)n = an x tn - a° = 1 • Recognize and use the appropriate laws of operations using numbers involving exponents and square and cube roots • Perform calculations involving all four operations with numbers that involve the squares, cubes, square roots and cube roots of integers • Calculate the squares, cubes, square roots and cube roots of rational numbers