IN.6.1. Number Sense
Students compare and order positive and negative integers, decimals, fractions, and mixed numbers. They find multiples and factors.
6.1.7 Find the least common multiple and the greatest common factor of whole numbers. Use them to solve problems with fractions (e.g., to find a common denominator to add two fractions or to find the reduced form for a fraction).
Students solve problems involving addition, subtraction, multiplication, and division of integers. They solve problems involving fractions, decimals, ratios, proportions, and percentages.
6.2.10 Use mental arithmetic to add or subtract simple fractions and decimals.
6.2.5 Solve problems involving addition, subtraction, multiplication, and division of positive fractions and explain why a particular operation was used for a given situation.