## Prealgebra (7th Edition)

$(1.2\times10^{-3})(3\times10^{-2})$ $\longrightarrow$ associative property =$(1.2\times3)(10^{-3}\times10^{-2})$ $\longrightarrow$ multiply; add exponents if the base is the same =$3.6\times10^{-5}$ $\longrightarrow$ move the decimal 5 places to the left =$0.000036$