Evaluate 49*49

Multiply ${\displaystyle 9}$ by ${\displaystyle 9}$. Place the ones digit ${\displaystyle \left(1\right)}$ in the result line and carry the tens digit ${\displaystyle \left(8\right)}$. There is one result line for each digit in ${\displaystyle 49}$.

Multiply ${\displaystyle 9}$ by ${\displaystyle 4}$ and add the carried ${\displaystyle 8}$. Place the ones digit ${\displaystyle \left(4\right)}$ in the result line and carry the tens digit ${\displaystyle \left(4\right)}$. There is one result line for each digit in the ${\displaystyle 49}$.

Multiply ${\displaystyle 4}$ by ${\displaystyle 9}$. Place the ones digit ${\displaystyle \left(6\right)}$ in the result line and carry the tens digit ${\displaystyle \left(3\right)}$. There is one result line for each digit in ${\displaystyle 49}$.

Multiply ${\displaystyle 4}$ by ${\displaystyle 4}$ and add the carried ${\displaystyle 3}$. Place the ones digit ${\displaystyle \left(9\right)}$ in the result line and carry the tens digit ${\displaystyle \left(1\right)}$. There is one result line for each digit in the ${\displaystyle 49}$.

Add the numbers in each column. In this case, add ${\displaystyle 1+0}$, then place the ${\displaystyle 1}$ in the result line.

Add the numbers in each column. In this case, add ${\displaystyle 4+6}$, then place the ${\displaystyle 0}$ in the result line and carry the ${\displaystyle 1}$.

Add the numbers in each column. In this case, add ${\displaystyle 4+9+1}$, then place the ${\displaystyle 4}$ in the result line and carry the ${\displaystyle 1}$.

Add the numbers in each column. In this case, add ${\displaystyle 0+1+1}$, then place the ${\displaystyle 2}$ in the result line.