463700 : 50 + 546 * 40 = 9274 + 21840 = 31114
1) $\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}463700\\ \phantom{0}\underset{¯}{450}\\ \phantom{0}\underset{¯}{\phantom{0}}137\\ \phantom{00}\underset{¯}{100}\\ \phantom{00}\underset{¯}{\phantom{0}}370\\ \phantom{000}\underset{¯}{350}\\ \phantom{000}\underset{¯}{\phantom{0}}200\\ \phantom{0000}\underset{¯}{200}\\ \phantom{000000}0\end{array}& \begin{array}{l}\overline{)50}\\ \overline{\overline{)9274}}\end{array}\end{array}$;
2) $\begin{array}{r}\begin{array}{r}\times \end{array}\underline{\begin{array}{r}\mathrm{560 }\\ 40\end{array}}\\ \begin{array}{r}\mathrm{21840 }\end{array}\end{array}$;
3) $\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}9274\\ 21840\end{array}}\\ \begin{array}{r}31114\end{array}\end{array}$.
 
55440 : 90 − 10460 : 20 = 616 − 523 = 93
1) $\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}55440\\ \phantom{0}\underset{¯}{540}\\ \phantom{0}\underset{¯}{\phantom{0}}144\\ \phantom{000}\underset{¯}{90}\\ \phantom{00}\underset{¯}{\phantom{0}}540\\ \phantom{000}\underset{¯}{540}\\ \phantom{00000}0\end{array}& \begin{array}{l}\overline{)90}\\ \overline{\overline{)616}}\end{array}\end{array}$;
2) $\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}10460\\ \phantom{0}\underset{¯}{100}\\ \phantom{00}\underset{¯}{\phantom{0}}46\\ \phantom{000}\underset{¯}{40}\\ \phantom{000}\underset{¯}{\phantom{0}}60\\ \phantom{0000}\underset{¯}{60}\\ \phantom{00000}0\end{array}& \begin{array}{l}\overline{)20}\\ \overline{\overline{)523}}\end{array}\end{array}$;
3) $\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}616\\ 523\end{array}}\\ \begin{array}{r}93\end{array}\end{array}$.
 
41090 : 70 + 11950 : 50 = 587 + 239 = 826
1) $\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}41090\\ \phantom{0}\underset{¯}{350}\\ \phantom{0}\underset{¯}{\phantom{0}}609\\ \phantom{00}\underset{¯}{560}\\ \phantom{00}\underset{¯}{\phantom{0}}490\\ \phantom{000}\underset{¯}{490}\\ \phantom{00000}0\end{array}& \begin{array}{l}\overline{)70}\\ \overline{\overline{)587}}\end{array}\end{array}$;
2) $\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}11950\\ \phantom{0}\underset{¯}{100}\\ \phantom{0}\underset{¯}{\phantom{0}}195\\ \phantom{00}\underset{¯}{150}\\ \phantom{00}\underset{¯}{\phantom{0}}450\\ \phantom{000}\underset{¯}{450}\\ \phantom{00000}0\end{array}& \begin{array}{l}\overline{)50}\\ \overline{\overline{)239}}\end{array}\end{array}$;
3) $\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}587\\ 239\end{array}}\\ \begin{array}{r}826\end{array}\end{array}$.
 
8130 : 30 − 2640 : 10 = 271 − 264 = 7
1) $\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}8130\\ \phantom{0}\underset{¯}{60}\\ \underset{¯}{\phantom{0}}213\\ \phantom{0}\underset{¯}{210}\\ \phantom{00}\underset{¯}{\phantom{0}}30\\ \phantom{000}\underset{¯}{30}\\ \phantom{0000}0\end{array}& \begin{array}{l}\overline{)30}\\ \overline{\overline{)271}}\end{array}\end{array}$;
2) 2640 : 10 = 264;
3) 271 − 264 = 7.
 
900100 − (735 − 184) * 80 = 900100 − 551 * 80 = 900100 − 44080 = 856020
1) $\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}735\\ 184\end{array}}\\ \begin{array}{r}551\end{array}\end{array}$;
2) $\begin{array}{r}\begin{array}{r}\times \end{array}\underline{\begin{array}{r}\mathrm{551 }\\ 80\end{array}}\\ \begin{array}{r}\mathrm{44080 }\end{array}\end{array}$;
3) $\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}900100\\ 44080\end{array}}\\ \begin{array}{r}856020\end{array}\end{array}$.
 
60997 + (6012 + 6228) : 30 = 60997 + 12240 : 30 = 60997 + 408 = 61405
1) $\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}6012\\ 6228\end{array}}\\ \begin{array}{r}12240\end{array}\end{array}$;
2) $\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}12240\\ \phantom{0}\underset{¯}{120}\\ \phantom{00}\underset{¯}{\phantom{0}}24\\ \phantom{0000}\underset{¯}{0}\\ \phantom{00}\underset{¯}{\phantom{0}}240\\ \phantom{000}\underset{¯}{240}\\ \phantom{00000}0\end{array}& \begin{array}{l}\overline{)30}\\ \overline{\overline{)408}}\end{array}\end{array}$;
3) $\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}60997\\ 408\end{array}}\\ \begin{array}{r}61405\end{array}\end{array}$.