Tommy has 13 items in his pencil case. The pens are twice as many as the pencils and there's one eraser. How many pencils are there? Let's think step by step and output the final answer after "####".
user
There are 13 items - 1 eraser = <<13-1=12>>12 pens and pencils.
There are 12 items / 3 = <<12/3=4>>4 pencils.
#### 4
Tommy has 13 items in his pencil case. The pens are twice as many as the pencils and there's one eraser. How many pencils are there?
train