Learning Resources Pretend & Play Calculator Cash Register, 73 Pieces Frustration Free Packaging: this version comes in a brown corrugated box. Easy to recycle and great for the environment! Solar activated calculator and cash register with LCD screen 73-piece set encourages children to learn basic math and money skills with this real-working cash register Includes 30 pretend US bills, 40 plastic coins, pretend credit card, and activity guide Cash drawer makes a "cha-ching" sound when it opens, just like a real register Ideal for ages 3+