Problem Solving- With Extra or Hidden Information

In what step in the problem solving method would you determine if the problem has extra, missing, or hidden information?

A pet store recieves a shipment of 5 boxes of dog treats. Each box is 24 inches high and has 22 bags of dog treats. Each bag has 46 ounces of dog treats. How many ounces of dog treats does the pet store receive in the shipment? What information in NOT needed to solve the problem?

A museum has 12 display cases. Each case has 4 rows with 4 shark teeth in each row. The shark teeth are 10 inches apart. How many shark teeth are there in all? What information is NOT needed to solve the problem?

A teacher buys 5 cases of bottled water and spends $30. Each case has 14 bottles. During a field trip, students drink 64 bottles. How many bottles are left? What information is NOT needed to solve the problem?