Trend® Skill Drill Flash Cards. Numbers 0-100 flash cards make it easy to learn numbers in numerals and number words at any pace. These versatile, educational cards are large enough for a whole classroom of students, but can be easily divided into smaller chunks for individual, partnered, or small-group study. Activity ideas are included to keep kids engaged and challenged in classrooms, homeschools, language learner programs and more. Box contains 101 flash cards, 3" x 6" each.