Grant’s 20 baby teeth – 1 tooth he dropped – 1 he swallowed = <<20-1-1=18>>18 teeth left for the tooth fairy.
We aren’t counting his first tooth, so 18 teeth – 1 first tooth = <<18-1=17>>17 teeth.
Grant received $54 - $20 = $<<54-20=34>>34 in total for all the teeth after the first.
So he received $34 / 17 teeth = $<<34/17=2>>2 for each tooth after his first tooth.
#### 2