Addition and subtraction is sometimes a difficult concept for some kids. The best way to introduce this is to use visual aids. Here in this printable busy bag we use clothespins to add and subtract to bring that concept together. preschool activities | fun activities for kids | arts and crafts for kids | homeschooling ideas | toddlers art | toddler activities | toddler arts and crafts | Preschool learning activities | preschool crafts | sensory activities for kids