Crystal Math Vol 2 : Subtraction within 100 Using Part-Whole Models for K2 to P 2

This comprehensive 117-page workbook makes addition within 100 engaging and accessible through 48 delightful animal-themed word problems.

What makes this book special:

• Step-by-step guidance from pictorial representations to abstract models
• Progressive learning through 6 carefully structured units (within 10, 20, 40, up to 100)
• Complete teaching support with 4 different approaches demonstrated for each concept
• Practice with 2-part, 3-part, and 4-part problems to build deep understanding
• Full answer key included for easy parent/teacher support

Perfect for: Ages 6-10, Kindergarten through Lower Primary students, homeschooling families, classroom teachers, and parents wanting to support their child's math journey.

Why part-whole models work: Children learn to visualize math relationships, understand the connection between parts and wholes, and develop strong number sense that builds confidence for advanced math concepts.