Bryan's score on a math exam is 20. Jen scored 10 more than Bryan while Sammy scored 2 fewer than Jen. If the math exam has 35 points in all, how many mistakes did Sammy make? Let's think step by step and output the final answer after "####".
user
Jen scored 20 + 10 = <<20+10=30>>30 on the exam.
Sammy scored two less, so his score was30 - 2 = <<30-2=28>>28.
Thus, Sammy made 35 - 28 = <<35-28=7>>7 mistakes.
#### 7
Bryan's score on a math exam is 20. Jen scored 10 more than Bryan while Sammy scored 2 fewer than Jen. If the math exam has 35 points in all, how many mistakes did Sammy make?
train