There are 50 passengers on a bus.  At the first stop, 16 more passengers get on the bus. On the other stops, 22 passengers get off the bus and 5 passengers more get on the bus. How many passengers are there on the bus in total at the last station?
There are 50+16=
<gadget id="calculator">50+16</gadget>
<output>66</output>
66 passengers at first.
Then 66 - 22 = 
<gadget id="calculator">66-22</gadget>
<output>44</output>
44 passengers remain.
Since 5 more passengers get on the bus there are 44 + 5 = 
<gadget id="calculator">44+5</gadget>
<output>49</output>
49 passengers on the bus.

<result>49</result>