IL.6. Number Sense: Demonstrate and apply a knowledge and sense of numbers, including numeration and operations (addition, subtraction, multiplication, division), patterns, ratios and proportions.
6.B. Investigate, represent and solve problems using number facts, operations (addition, subtraction, multiplication, division) and their properties, algorithms and relationships.
6.B.2. Solve one- and two-step problems involving whole numbers, fractions and decimals using addition, subtraction, multiplication and division.
6.C. Compute and estimate using mental mathematics, paper-and-pencil methods, calculators and computers.
6.C.2a. Select and perform computational procedures to solve problems with whole numbers, fractions and decimals.
IL.7. Estimation and Measurement: Estimate, make and use measurements of objects, quantities and relationships and determine acceptable levels of accuracy.
7.A. Measure and compare quantities using appropriate units, instruments and methods.
7.A.2b. Solve addition, subtraction, multiplication and division problems using currency.