John plays paintball 3 times a month.  Each time he plays he buys 3 boxes of paintballs.  They cost $25 per box.  How much does he spend a month on paintballs?
He spends 3*25=$
<gadget id="calculator">3*25</gadget>
<output>75</output>
75 each time he plays.
So he spends 75*3=$
<gadget id="calculator">75*3</gadget>
<output>225</output>
225.

<result>225</result>