Yesterday, Vincent bought fifteen packs of stickers. Today, he bought ten more packs of stickers than yesterday. How many packs of stickers does Vincent have altogether?
Today, Vincent bought 15 + 10 = 
<gadget id="calculator">15+10</gadget>
<output>25</output>
25 packs of stickers.
Therefore, Vincent has 15 + 25= 
<gadget id="calculator">15+25</gadget>
<output>40</output>
40 packs of stickers.

<result>40</result>