Question

Zander is in charge of filling goodie bags for the upcoming school party.He plans to order prizes from an online party store.The store sells items by the gross (1 gross = 144 ). They are expecting 225 guests at the party. Zander plans on putting 8 items into each goodie bag. Use the list below to create an order for Zander. Explain how you know that you've ordered enough prizes.
Lists of items:
Finger Puppets = 1 gross, Bookmarks = 1 gross, Assorted pencils = 2 gross, Animal erasers = 1 gross, Foam Craft Kits = 1 gross, Glow-the-Dark Stickers =1 gross.

Answer 1

2 gross finger puppets; 2 gross bookmarks; 4 gross assorted pencils; 2 gross animal erasers; 2 gross foam craft kits; 2 gross glow in the dark stickers.

This gives 14 gross prizes; 14*144 = 2016.
Expecting 225 guests, with 8 prizes per bag = 225*8 = 1800

This gives enough extra for 27 more bags, in case more people than expected show up.