|Dimensions||6 × 4 × 2 in|
This set of 6″x4″ flashcards is organized as follows:
• 1-10 Addition Families
• 1-10 Subtraction Families
• 11-18 Addition & Subtraction Families (taught as triplets)
Students in first and second grades should continually review all flashcards taught previously to retain fluency and instant recall.