Audio Memory puts math facts to music, singing tables in echo style. Each song is different and is repeated with a pause before answers are provided, for self-testing. Each kit includes a reproducible workbook. Addition Songs: 25-minute sound track begins with counting from 1 to 20, then teaches math facts from 1+1 to 9+9. Subtraction Songs: 37-minute track with songs that teach from 1-1 to 20-12. Multiplication Songs: 32-minute track teaches from 2x2 to 12x12. Division Songs: 34-minutes; teaches facts from 2/2 to 144/12. Facts are taught in sets (2's, 3's, etc.) but are sung out of order for more challenge.