1. **State the problem:** Add the numbers 9014, 927, and 421. 2. **Write the addition vertically:** $$ \begin{array}{r} 9014 \\ + 927 \\ + 421 \\ \hline \end{array} $$ 3. **Add the units column:** $4 + 7 + 1 = 12$. Write 2 and carry over 1. 4. **Add the tens column:** $1 + 1 + 2 + 2 = 6$ (including the carryover 1). 5. **Add the hundreds column:** $0 + 9 + 4 = 13$. Write 3 and carry over 1. 6. **Add the thousands column:** $9 + 1 = 10$ (including the carryover 1). Write 0 and carry over 1. 7. **Add the carryover to the next place:** Write 1. 8. **Final sum:** $$ \begin{array}{r} 9014 \\ + 927 \\ + 421 \\ \hline 10362 \\ \end{array} $$ The sum of 9014, 927, and 421 is **10362**.