WA.6.1. Core Content: Multiplication and division of fractions and decimals (Numbers, Operations, Algebra) Students have done extensive work with fractions and decimals in previous grades and are now prepared to learn how to multiply and divide fractions and decimals with understanding. They can solve a wide variety of problems that involve the numbers they see every day - whole numbers, fractions, and decimals. By using approximations of fractions and decimals, students estimate computations and verify that their answers make sense.
6.1.B. Represent multiplication and division of non-negative fractions and decimals using area models and the number line, and connect each representation to the related equation.
6.1.D. Fluently and accurately multiply and divide non-negative fractions and explain the inverse relationship between multiplication and division with fractions.
WA.6.5. Additional Key Content (Numbers, Operations) Students extend their mental math skills now that they have learned all of the operations - addition, subtraction, multiplication, and division - with whole numbers, fractions, and decimals. Students continue to expand their understanding of our number system as they are introduced to negative numbers for describing positions or quantities below zero. These numbers are a critical foundation for algebra, and students will learn how to add, subtract, multiply, and divide positive and negative numbers in seventh grade as further preparation for algebraic study.
6.5.A. Use strategies for mental computations with non-negative whole numbers, fractions, and decimals.