Wykonajmy obliczenia.

a)

$\begin{array}{r}230\\ \underline{-120}\\ 110\end{array}$

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b)

$\begin{array}{r}846\\ \underline{-312}\\ 534\end{array}$

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c)

$\begin{array}{r}783\\ \underline{-41}\\ 742\end{array}$

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d)

$\begin{array}{r}195\\ \underline{-84}\\ 111\end{array}$

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e)

$\begin{array}{r}764\\ \underline{-412}\\ 352\end{array}$