3在$□$里填上合适的数
$33+17=□0$
$42+49=□1$
$55+38=□3$
$23+60=□3$
$17+13=□0$
$3+71=□4$
$47+7=□4$
$25+73=□8$
$46+28=□4$
$57+24=□1$
$13+59=□2$
$72+17=□9$
$3+69=□2$
$64+25=□9$
$26+29=□5$
$56+34=□0$

5
9
9
8
3
7
5
9
7
8
7
8
7
8
5
9

列竖式计算
$16+24=$
$\begin{array}{r}($ $)\\+($ $)\\\hline($ $)\end{array}$
$26+36=$
$\begin{array}{r}($ $)\\+($ $)\\\hline($ $)\end{array}$
$55+28=$
$\begin{array}{r}($ $)\\+($ $)\\\hline($ $)\end{array}$
$27+25=$
$\begin{array}{r}($ $)\\+($ $)\\\hline($ $)\end{array}$
$17+36=$
$\begin{array}{r}($ $)\\+($ $)\\\hline($ $)\end{array}$
$61+29=$
$\begin{array}{r}($ $)\\+($ $)\\\hline($ $)\end{array}$
$25+32=$
$\begin{array}{r}($ $)\\+($ $)\\\hline($ $)\end{array}$
$39+45=$
$\begin{array}{r}($ $)\\+($ $)\\\hline($ $)\end{array}$

$\begin{array}{r}16\\+24\\\hline40\end{array}$
$\begin{array}{r}26\\+36\\\hline62\end{array}$
$\begin{array}{r}55\\+28\\\hline83\end{array}$
$\begin{array}{r}27\\+25\\\hline52\end{array}$
$\begin{array}{r}17\\+36\\\hline53\end{array}$
$\begin{array}{r}61\\+29\\\hline90\end{array}$
$\begin{array}{r}25\\+32\\\hline57\end{array}$
$\begin{array}{r}39\\+45\\\hline84\end{array}$