Gr 9 (Exponents)

Key Topics and Skills

Calculations using numbers in exponential form

• Revise the following general laws of exponents.

• am x an = am + n

• am ÷ an = am - n, if m > n

• (am)n = am x n

• (a x t)n = an x t n

• a0 = 1

• Extend the general laws of exponents to include:

•  integer exponents

• a–m = 1/am

• Perform calculations involving all four operations using numbers in exponential form