1. (5.4 x 10^-1)(7 x 10^0)=
2. (5 x 10^3)(3.5 x 10^-1)=
3. (4.11 x 10^5)(8.65 x 10^-5)=
4. (8.31 x 10^-3)(6.6 x 10^-6)=
1. (5.4 x 10^-1)(7 x 10^0) = 37.8 x 10^-1 = 3.78
2. (5 x 10^3)(3.5 x 10^-1) = 17.5 x 10^2 = 1.75 x 10^3
3. (4.11 x 10^5)(8.65 x 10^-5) = 35.5215 x 10^0 = 3.55215 x 10^1
4. (8.31 x 10^-3)(6.6 x 10^-6) = 0.054846 x 10^-8 = 5.4846 x 10^-9