\begin{frame}
  \frametitle{Properties of the Definite Integral}

  \begin{block}{}
    \begin{malign}
    \int_b^a f(x) dx &= \mpause[1]{- \int_a^b f(x) dx} \\[.3ex]
    \mpause{ \int_a^a f(x) dx &= }\mpause{0}\\[.3ex]
    \mpause{ \int_a^b c\; dx &= }\mpause{c(b-a)}\\[.3ex]
    \mpause{ \int_a^b (f(x) + g(x)) dx &= }\mpause{\int_a^b f(x) + \int_a^b g(x)}\\[.3ex]
    \mpause{ \int_a^b (f(x) - g(x)) dx &= }\mpause{\int_a^b f(x) - \int_a^b g(x)}\\[.3ex]
    \mpause{ \int_a^b cf(x) dx &= }\mpause{c \int_a^b f(x)} \\[.3ex]
    \mpause{ \int_a^c f(x) dx + \int_c^b f(x) dx&= }\mpause{\int_a^b f(x)}
    \end{malign}
  \end{block}
\end{frame}