Exponential Numbers

10^3=1000, 1 w/ 3 zeroes follwoing

10^6 - million

10^9 - billion

8.1 × 10^9 = 8.1 billion, the human population

negative powers give u numbers smaller than 1

10-1 = 0.1

10-8=0.000000

102×103 =105 not 106

(2×102)x(3×103)=6×105

multuply coeff add exponents

3×102/2×103=1.5×10-1

opposite when it comes to division