Use the properties and order of operations, and the relationships between operations, to solve problems involving rational numbers, ratios, rates, and percents, including those requiring multiple steps or multiple operations.
8.B2.3
Use mental math strategies to multiply and divide whole numbers and decimal numbers up to thousandths by powers of ten, and explain the strategies used.
8.B2.5
Add and subtract fractions, using appropriate strategies, in various contexts.
8.B2.6
Multiply and divide fractions by fractions, as well as by whole numbers and mixed numbers, in various contexts.
