Vertical Addition: Addition of 3-digit and 1-digit numbers with the regrouping of both tens and ones

$\begin{aligned} &236 \\ +& \\ &~~~~7 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

243

$\begin{aligned} &543 \\ +& \\ &~~~~8 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

551

$\begin{aligned} &716 \\ +& \\ &~~~~8 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

724

$\begin{aligned} &917 \\ +& \\ &~~~~5 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

922

$\begin{aligned} &872 \\ +& \\ &~~~~9 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

881

$\begin{aligned} &173 \\ +& \\ &~~18 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

191

$\begin{aligned} &276 \\ +& \\ &~~16 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

292

$\begin{aligned} &317 \\ +& \\ &~~45 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

362

$\begin{aligned} &728 \\ +& \\ &~~56 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

784