\[\boxed{\text{7.18.}}\]
\[\mathbf{Вычисления\ с\ помощью\ }\]
\[\mathbf{калькулятора:}\]
\[\textbf{а)}\ 56,034 + 4,967 = 61,001\]
\[\textbf{б)}\ 643,27 - 382,79 = 260,48\]
\[\textbf{в)}\ 14,27 \cdot 58,34 = 832,5118\]
\[\textbf{г)}\ 92,41\ :8,123 =\]
\[= 11,376338791\ldots.\]
\[\textbf{д)}\ 407,4 + 9342,528\ :24,7 =\]
\[= 785,64\]
\[\textbf{е)}\ 84,5 \cdot 13,6 - 659,45 = 489,75\ \]