Subitizing Unit. Google Slides No Prep Math Center and Digital Games. Teach foundation math skills like counting and cardinality, number recognition, numeracy, quantity, numbers to 20, and subitizing (quickly identifying amounts of items)! THIS BUNDLE INCLUDES THE MEGA PACK (PDF) PLUS TWO DIGITAL SUBITIZING GAMES!!! Easy for Distance Learning.This MEGA PACK holds everything you will need to teach subitizing in a fun and engaging way! Subitizing is the ability to rapidly know how many items are i