Vertical Addition: 4 digits

$\begin{aligned} &2781 \\ +& \\ &8417 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

11198

$\begin{aligned} &8472\\ +& \\ &5261 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

13733

$\begin{aligned} &1054 \\ +& \\ &~~353 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

1407

$\begin{aligned} &2789 \\ +& \\ &~~456 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

3245

$\begin{aligned} &3267 \\ +& \\ &1662 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

4929

$\begin{aligned} &3289 \\ +& \\ &2835 \\ &\underline{\phantom{776}} & \\ \end{aligned}$$$

6124

$\begin{aligned} &4653 \\ +& \\ &~~867 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

5520

$\begin{aligned} &4652 \\ +& \\ &2161 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

6813

$\begin{aligned} &5421 \\ +& \\ &1657 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

7078

$\begin{aligned} &7831 \\ +& \\ &~~673 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

8504

$\begin{aligned} &6324 \\ +& \\ &2798\\ &\underline{\phantom{776}} & \\ \end{aligned}$

9122

$\begin{aligned} &7256 \\ +& \\ &1967\\ &\underline{\phantom{776}} & \\ \end{aligned}$

9223

$\begin{aligned} &1547 \\ +& \\ &7656 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

9203

$\begin{aligned} &8974 \\ +& \\ &~~264 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

9238

$\begin{aligned} &7351 \\ +& \\ &2499 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

9850