4. The card system in claim 1, wherein said first pattern strip comprises a pattern of color cells, whereby said color cells represents said binary digit values and the arithmetic summation of said binary values equals to said correct answer.
1. An educational card system comprising: (a) a question card having a question face and a back face, said question face having a visual representation of a query; (b) an answer card having an answer face and a posterior face, said answer face having a visual representation of a correct answer to said query, said correct answer comprising a numeric value; (c) a first pattern strip, said first pattern strip visually presented and located on said question card, said first pattern strip including at least two binary digit values, said binary digit values equal in arithmetic summation to said numeric value of said correct answer; and (d) a second pattern strip, said second pattern strip substantively visually similar to said first pattern strip, said first pattern strip including at least two binary digit values, said binary digit values equal in arithmetic summation to said numeric value of said correct answer and where said second pattern strip is visually presented and located on said answer card whereby a student can accurately visually associate said question card with said answer card from a multiplicity of question cards and answer cards and thereby confirm that said query is correctly matched to said correct answer, where each of said multiplicity of question cards and answer card comprise pattern strips substantively visualiy distinguishable from said first pattern and said second pattern.