Common Fractions: Mathematical Systems; Common Fractions and Mixed Numbers; Addition, Subtraction, Multiplication and Division of Common Fractions and Mixed Numbers; Applications. Decimal Fractions: Introduction, Rounding; Finding Equivalents; Basic Operations; Estimation; Significant Digits; Applications. Metric Measure: Introduction; Length, Area; Volume; Mass; Temperature; Applications. Ratio, Proportion and Percent: Introduction; Computation; Percents; Equations Involving Percent; Applications. Systems of Measure: Apothecaries System - Weight and Volume; Household-Apothecaries Systems. Household -Metric Systems. Organizing and Reporting Data: Charts and Graphs; Computer-Tools of the 21st Century.