Human: Castle bought 3 boxes of Coco Crunch and 5 boxes of Fruit Loops this week. Last week she bought 4 boxes of cereal. How many more boxes of cereal did she buy this week than last week? Assistant: 
How many boxes of cereals does Castle have this week? ** Castle has 5 + 3 = <<5+3=8>>8 boxes of cereals this week.
How many more boxes of cereal did Castle buy this week than last week? ** Therefore, Castle bought 8 - 4 = <<8-4=4>>4 more boxes of cereals this week than last week.
#### 4