by Page A Day Math
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This is a physical product and shipped.
Perfect for 
students in grades 1-4, ages 6+ who have mastered addition and subtraction facts.
Learning Objectives Multiplying by 0-12 with new multiplication facts introduced in each book, daily.
Every Book has 32 pages, 40 daily problems, 14 days of practice, 550 problems per book (6,500+ per series).
12-Book Series has practice and repetition to last 168 days, a fun and easy to use curriculum, handwriting aids, daily achievements stars, and a completion certificate.