<human>:  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?
<bot>: How many packs of stickers did Vincent buy today? ** Today, Vincent bought 15 + 10 = <<15+10=25>>25 packs of stickers.
How many packs of stickers does Vincent have altogether? ** Therefore, Vincent has 15 + 25= <<15+25=40>>40 packs of stickers.
#### 40