45 − 4 = 41
86 − 6 = 80
76 − 24 = 52
53 − 12 = 41
99 − 66 = 33
38 − 17 = 21
93 − 81 = 12
57 − 56 = 1
25 см + 30 см = 55 см
48 дм + 11 дм = 59 дм
96 м − 13 м = 83 м
80 дм − 60 дм = 20 дм
Вычисления:
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}45\\ 4\end{array}}\\ \begin{array}{r}41\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}86\\ 6\end{array}}\\ \begin{array}{r}80\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}76\\ 24\end{array}}\\ \begin{array}{r}52\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}53\\ 12\end{array}}\\ \begin{array}{r}41\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}99\\ 66\end{array}}\\ \begin{array}{r}33\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}38\\ 17\end{array}}\\ \begin{array}{r}21\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}93\\ 81\end{array}}\\ \begin{array}{r}12\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}57\\ 56\end{array}}\\ \begin{array}{r}1\end{array}\end{array}$
25 см + 30 см
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}25\\ 30\end{array}}\\ \begin{array}{r}55\end{array}\end{array}$ см
48 дм + 11 дм
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}48\\ 11\end{array}}\\ \begin{array}{r}59\end{array}\end{array}$ дм
96 м − 13 м
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}96\\ 13\end{array}}\\ \begin{array}{r}83\end{array}\end{array}$ м
80 дм − 60 дм
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}80\\ 60\end{array}}\\ \begin{array}{r}20\end{array}\end{array}$ дм