Solve {l}{8*50*7}{2*50*9}{12*15*4}{13*20*50}

$$\left. \begin{array} { l } { 8 \cdot 50 \cdot 7 } \\ { 2 \cdot 50 \cdot 9 } \\ { 12 \cdot 15 \cdot 4 } \\ { 13 \cdot 20 \cdot 50 } \end{array} \right.$$

Sort

$$720,900,2800,13000$$

Solution Steps

Multiply 8 and 50 to get 400.

$$sort(400\times 7,2\times 50\times 9,12\times 15\times 4,13\times 20\times 50)$$

Multiply 400 and 7 to get 2800.

$$sort(2800,2\times 50\times 9,12\times 15\times 4,13\times 20\times 50)$$

Multiply 2 and 50 to get 100.

$$sort(2800,100\times 9,12\times 15\times 4,13\times 20\times 50)$$

Multiply 100 and 9 to get 900.

$$sort(2800,900,12\times 15\times 4,13\times 20\times 50)$$

Multiply 12 and 15 to get 180.

$$sort(2800,900,180\times 4,13\times 20\times 50)$$

Multiply 180 and 4 to get 720.

$$sort(2800,900,720,13\times 20\times 50)$$

Multiply 13 and 20 to get 260.

$$sort(2800,900,720,260\times 50)$$

Multiply 260 and 50 to get 13000.

$$sort(2800,900,720,13000)$$

To sort the list, start from a single element 2800.

$$2800$$

Insert 900 to the appropriate location in the new list.

$$900,2800$$

Insert 720 to the appropriate location in the new list.

$$720,900,2800$$

Insert 13000 to the appropriate location in the new list.

$$720,900,2800,13000$$

Evaluate

$$2800,\ 900,\ 720,\ 13000$$