Olivia and Nigel are traveling in Asia.  Olivia has $112 and Nigel has $139. If together they buy six one day passes to a tourist attraction for $28 per ticket, how much money do they have left?
They have 112+139=$
<gadget id="calculator">112+139</gadget>
<output>251</output>
251.
The passes cost 6*28=$
<gadget id="calculator">6*28</gadget>
<output>168</output>
168.
They have 251-168=$
<gadget id="calculator">251-168</gadget>
<output>83</output>
83 left.

<result>83</result>