Spectrum(R) Addition Flash Cards help build early arithmetic skills. With fluency drills within 20 and visual models within 100, children ages 6 and up build math facts and place value strategies, laying the groundwork for more advanced concepts.Spectrum Flash Cards support the skills your child needs to know. Each 100-card set addresses essential skills for early childhood education. Letters & Numbers and Colors & Shapes help young learners grasp early math and reading concepts. First Words build reading readiness through word-image association, while Sight Words help students identify high-frequency words in their reading. Addition, Subtraction, Multiplication, and Division build knowledge of math facts and place value strategies, laying the groundwork for more advanced math concepts. Aligned to current state standards, Spectrum Flash Cards are a valuable and engaging supplement to the Spectrum workbook series.