test mastery tedbook by lumos learning - 3rd grade math state test prep workbook | two online grade 3 math practice tests & learning resources: covers ... subtraction, geometry, measurement (ages 8-9) is up for auction in Books. The current bid is $1.00, 95% below the $21.95 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.