Forward and Acknowledgments.- Part I. Introduction to the Texts.- Introduction.- Chapter 1. Text Types and Archival Practices.- Chapter 2. Bureaus and Management Systems.- Part II. Mathematical and Numerical Introduction.- Chapter 3. The Early Scribal Education.- Appendix A. Metrological and Numerical List and Table Catalogue.- Chapter 4. Metrology and SPVN in Economic Texts.- Appendix B. Price and Wage Index and Charts.- Part III. Discrepancies and Observations.- Chapter 5. Errors, Mistakes, and Evidence for a Counting Device.- Chapter 6. Observation and the Limits of Numeracy.- Chapter 7. Methods to Assess Value.- Part IV. Multiplication and Value Estimation.- Chapter 8. Multiplication and Revenue.- Chapter 9. Equivalencies.- Chapter 10. Estimation, Observation, and Labor.- Part V. Rounding in the Scribal Tradition.- Chapter 11. Rounding in the Mathematical Economic Texts.- Conclusion: On Mistakes, Error, and Rounding Numbers.- Appendix C. Discrepancy Index.