Developed as part of the ABCs of Construction National Workplace Literacy Project, this instructional module consists of instructional materials and application problems designed to help persons employed as millwrights learn to measure decimals. The six exercises included in the module each consist of series of problems in which students are required to measure, read, add, and subtract decimals and use the "OPEN" (Operation, Pick, Execute, Note) approach to working with decimals. (MN)