Tilly's New Year Mystery Picture: Add Three Numbers

Tilly the polar bear has a mystery picture for New Year's, hidden under nine tiles. Each time students add three numbers correctly, one tile lifts. They start by counting three groups of balloons, party hats and cupcakes, then add three numbers with sums up to 20 using make-ten pairs, doubles and adding zero. Every direction is read aloud, and a wrong answer gets a spoken hint. Self-checking, about 10 minutes, for kindergarten through second grade.

• 9 self-checking addition scenes
• 3 picture scenes with groups to count
• A hidden picture revealed one tile at a time
• Spoken directions and wrong-answer hints

• Add three numbers with sums up to 20
• Count three groups to find a total
• Use make-ten pairs, doubles and adding zero to add quickly