43 + 19 = 62
60 − 28 = 32
56 + 44 = 12
35 + 35 = 70
81 − 29 = 52
90 − 77 = 13
100 − 6 = 94
52 − 7 = 45
100 − 89 = 11
9 + 28 = 37
7 + 93 = 100
3 + 57 = 60
Вычисления:
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}43\\ 19\end{array}}\\ \begin{array}{r}62\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}60\\ 28\end{array}}\\ \begin{array}{r}32\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}56\\ 44\end{array}}\\ \begin{array}{r}12\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}35\\ 35\end{array}}\\ \begin{array}{r}70\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}81\\ 29\end{array}}\\ \begin{array}{r}52\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}90\\ 77\end{array}}\\ \begin{array}{r}13\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}100\\ 6\end{array}}\\ \begin{array}{r}94\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}9\\ 28\end{array}}\\ \begin{array}{r}37\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}7\\ 93\end{array}}\\ \begin{array}{r}100\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}3\\ 57\end{array}}\\ \begin{array}{r}60\end{array}\end{array}$