Miss Davis gave 15 popsicle sticks to each of the 10 groups in her class. How many sticks does she have left if she had 170 popsicle sticks?
Miss Davis gave a total of 15 x 10 = <<15*10=150>>150 popsicle sticks to the 10 groups in her class.
So, she is left with 170 - 150 = <<170-150=20>>20 sticks.
#### 20