Solve {l}{15+12:4-3*2}{2*(2+3)-20:(1+3)}

$$\left. \begin{array} { l } { 15 + 12 : 4 - 3 \times 2 } \\ { 2 \times ( 2 + 3 ) - 20 : ( 1 + 3 ) } \end{array} \right.$$

Sort

$$5,12$$

Solution Steps

Divide 12 by 4 to get 3.

$$sort(15+3-3\times 2,2\left(2+3\right)-\frac{20}{1+3})$$

Add 15 and 3 to get 18.

$$sort(18-3\times 2,2\left(2+3\right)-\frac{20}{1+3})$$

Multiply 3 and 2 to get 6.

$$sort(18-6,2\left(2+3\right)-\frac{20}{1+3})$$

Subtract 6 from 18 to get 12.

$$sort(12,2\left(2+3\right)-\frac{20}{1+3})$$

Add 2 and 3 to get 5.

$$sort(12,2\times 5-\frac{20}{1+3})$$

Multiply 2 and 5 to get 10.

$$sort(12,10-\frac{20}{1+3})$$

Add 1 and 3 to get 4.

$$sort(12,10-\frac{20}{4})$$

Divide 20 by 4 to get 5.

$$sort(12,10-5)$$

Subtract 5 from 10 to get 5.

$$sort(12,5)$$

To sort the list, start from a single element 12.

$$12$$

Insert 5 to the appropriate location in the new list.

$$5,12$$

Evaluate

$$12,\ 5$$