Question

126,267
15,809
+ 8,764

Explanation:

Step1: Align numbers by place value

$$\begin{align*} 126,267\\ 15,809\\ +\quad8,764\\ \hline \end{align*}$$

Step2: Add units place digits

$7 + 9 + 4 = 20$. Write 0, carryover 2.

Step3: Add tens place digits

$6 + 0 + 6 + 2 = 14$. Write 4, carryover 1.

Step4: Add hundreds place digits

$2 + 8 + 7 + 1 = 18$. Write 8, carryover 1.

Step5: Add thousands place digits

$6 + 5 + 8 + 1 = 20$. Write 0, carryover 2.

Step6: Add ten-thousands place digits

$2 + 1 + 2 = 5$. Write 5.

Step7: Add hundred-thousands place digit

Write down the remaining 1.

Answer:

150,840