Solve {l}{10*3-6div2*4+6*2}{42div7*3-8+9-2}

$$\left. \begin{array} { l } { 10 \times 3 - 6 \div 2 \times 4 + 6 \times 2 } \\ { 42 \div 7 \times 3 - 8 + 9 - 2 } \end{array} \right.$$

Sort

$$17,30$$

Solution Steps

Multiply 10 and 3 to get 30.

$$sort(30-\frac{6}{2}\times 4+6\times 2,\frac{42}{7}\times 3-8+9-2)$$

Divide 6 by 2 to get 3.

$$sort(30-3\times 4+6\times 2,\frac{42}{7}\times 3-8+9-2)$$

Multiply 3 and 4 to get 12.

$$sort(30-12+6\times 2,\frac{42}{7}\times 3-8+9-2)$$

Subtract 12 from 30 to get 18.

$$sort(18+6\times 2,\frac{42}{7}\times 3-8+9-2)$$

Multiply 6 and 2 to get 12.

$$sort(18+12,\frac{42}{7}\times 3-8+9-2)$$

Add 18 and 12 to get 30.

$$sort(30,\frac{42}{7}\times 3-8+9-2)$$

Divide 42 by 7 to get 6.

$$sort(30,6\times 3-8+9-2)$$

Multiply 6 and 3 to get 18.

$$sort(30,18-8+9-2)$$

Subtract 8 from 18 to get 10.

$$sort(30,10+9-2)$$

Add 10 and 9 to get 19.

$$sort(30,19-2)$$

Subtract 2 from 19 to get 17.

$$sort(30,17)$$

To sort the list, start from a single element 30.

$$30$$

Insert 17 to the appropriate location in the new list.

$$17,30$$

Evaluate

$$30,\ 17$$