Dulce's father has eight orange trees on his farm. If each tree has 200 fruits and Dulce picks 2/5 of the oranges from each tree, calculate the total number of fruits remaining in all the trees.
The total number of oranges in all the trees before Dulce picked any is 8 trees * 200 oranges/tree = 
<gadget id="calculator">8*200</gadget>
<output>1_600</output>
1600 oranges.
If each orange tree has 200 oranges, and Dulce picks 2/5 of each tree's oranges, she picks 2/5 * 200 oranges = 
<gadget id="calculator">2/5*200</gadget>
<output>80</output>
80 oranges.
Since the total number of orange trees is eight, Dulce picked 8 trees * 80 oranges/tree = 
<gadget id="calculator">8*80</gadget>
<output>640</output>
640 oranges from all the trees.
After picking 640 oranges from the trees, the total number of oranges remaining became 1600 oranges - 640 oranges = 960 oranges.

<result>960</result>