Mark started the day with 14 buttons. His friend Shane gave him 3 times that amount of buttons. Then his other friend Sam asked if he could have half of Mark’s buttons. How many buttons did Mark end up with?
Shane gave Mark 14*3=
<gadget id="calculator">14*3</gadget>
<output>42</output>
42 buttons.
After that Mark had 42+14=
<gadget id="calculator">42+14</gadget>
<output>56</output>
56 buttons.
Then Mark gave 56/2=
<gadget id="calculator">56/2</gadget>
<output>28</output>
28 buttons to Shane.
Which left Mark with 28 buttons.

<result>28</result>