Mitchell is trying to chew as many pieces of gum at once as he can. He has 8 packets of gum, There are 7 pieces in each. If he chews all the gum except for 2 pieces, how many pieces does he chew at once?
The packets have 56 pieces in total because 8 x 7 = <<8*7=56>>56
He chews 54 pieces because 56 -2 = <<56-2=54>>54
#### 54