Eai Education Classroom Open Number Line Cards: Grades 3-5 (Cards Only)Promote Fraction And Decimal Fluency Through A Number Line Model! Add Grade Level Content Cards To Your Eai Classroom Open Number Line Base Kit (Sold Separately). Great For Classroom Use Math Coaches And Remedial Or Advanced Math Classes. Cards Measure 3'' 4''. Set Of 584 Cards Including 30 Blank Dry Erase Cards For Adding Your Own Content. Topics Include: Numbers 1 100 Numbers 200 1 000 Number Words For Ten Thousand To One Billion Expanded Form Of