Solve {l}{+1+1+1+1}{+1+1+1+1}{+1*0+1}

$$\left. \begin{array} { l } { + 1 + 1 + 1 + 1 } \\ { + 1 + 1 + 1 + 1 } \\ { + 1 \times 0 + 1 } \end{array} \right.$$

Evaluate

$$9$$

Solution Steps

Add 1 and 1 to get 2.

$$2+1+1+1+1+1+1+1\times 0+1$$

Add 2 and 1 to get 3.

$$3+1+1+1+1+1+1\times 0+1$$

Add 3 and 1 to get 4.

$$4+1+1+1+1+1\times 0+1$$

Add 4 and 1 to get 5.

$$5+1+1+1+1\times 0+1$$

Add 5 and 1 to get 6.

$$6+1+1+1\times 0+1$$

Add 6 and 1 to get 7.

$$7+1+1\times 0+1$$

Add 7 and 1 to get 8.

$$8+1\times 0+1$$

Multiply 1 and 0 to get 0.

$$8+0+1$$

Add 8 and 0 to get 8.

$$8+1$$

Add 8 and 1 to get 9.

$$9$$

Factor

$$3^{2}$$