Oranges have 80 calories and cost $1.20 each. If Timmy has $10 and needs to make sure he gets 400 calories, how much money will he have left after he buys the oranges he needs?
He needs to buy 5 oranges because 400 / 80 = 
<gadget id="calculator">400/80</gadget>
<output>5</output>
5.
These will cost $6 because 5 x 1.2 = 
<gadget id="calculator">5*1.2</gadget>
<output>6</output>
6.
He will have $4 left because 10 - 6 = 
<gadget id="calculator">10-6</gadget>
<output>4</output>
4.

<result>4</result>