Aligned to current state standards, this workbook provide clear instruction and a systematic approach to skill development and concept mastery. The practice activities include using visual models to represent problems, equation writing, strategies for making 10, and fluency drills. An answer key is included to help parents and teachers accurately gauge skill mastery.

The best-selling Spectrum® series is a favorite of parents and teachers because it’s carefully designed to be both effective and engaging—the perfect building blocks for a lifetime of learning.