This paper provides Appendix D, Standard Error tables, for the full report, entitled. "Literacy, Numeracy, and Problem Solving in Technology-Rich Environments among U.S. Adults: Results from the Program for the International Assessment of Adult Competencies 2012. First Look. NCES 2014-008." The full report presents results of the Program for the International Assessment of Adult Competencies (PIAAC). Results are reported for a representative sample of adults in the United States age 16 to 65 and are compared to an international average of adults in countries/regions that participated in the PIAAC 2012 assessment. The full report presents average score results for three separate scales: literacy, numeracy, and problem solving in technology-rich environments and percentages of adults performing at different proficiency levels for each scale. Literacy and numeracy results are reported at Below Level 1, Level 1, Level 2, Level 3, and Level 4/5; problem solving in technology-rich environments is reported at Below Level 1, Level 1, Level 2, and Level 3. The report includes results for groups of adults as defined by various demographic characteristics (e.g., gender, age, race/ethnicity, and level of educational attainment) and level of skill use in and outside of work. Overall results in literacy and numeracy are compared to results from previous international assessments. (Contains 35 tables.) [To view the full report, "Literacy, Numeracy, and Problem Solving in Technology-Rich Environments among U.S. Adults: Results from the Program for the International Assessment of Adult Competencies 2012. First Look. NCES 2014-008." see ED544452.]