6.2.3 Multiply and divide decimals.
6.2.9 Use estimation to decide whether answers are reasonable in decimal problems.
6.2.10 Use mental arithmetic to add or subtract simple fractions and decimals.

6.7.1 Analyze problems by identifying relationships, telling relevant from irrelevant information, identifying missing information, sequencing and prioritizing information, and observing patterns.
6.7.3 Decide when and how to break a problem into simpler parts.
6.7.5 Express solutions clearly and logically by using the appropriate mathematical terms and notation. Support solutions with evidence in both verbal and symbolic work.
6.7.9 Make precise calculations and check the validity of the results in the context of the problem.
6.7.10 Decide whether a solution is reasonable in the context of the original situation.
6.7.11 Note the method of finding the solution and show a conceptual understanding of the method by solving similar problems.

7.2.1 Solve addition, subtraction, multiplication, and division problems that use integers, fractions, decimals, and combinations of the four operations.
7.2.4 Use estimation to decide whether answers are reasonable in problems involving fractions and decimals.
7.2.5 Use mental arithmetic to compute with simple fractions, decimals, and powers.

Problem Solving
7.7.1 Analyze problems by identifying relationships, telling relevant from irrelevant information, identifying missing information, sequencing and prioritizing information, and observing patterns.
7.7.3 Decide when and how to divide a problem into simpler parts.
7.7.6 Express solutions clearly and logically by using the appropriate mathematical terms and notation. Support solutions with evidence in both verbal and symbolic work.
7.7.10 Make precise calculations and check the validity of the results in the context of the problem.
7.7.11 Decide whether a solution is reasonable in the context of the original situation.
7.7.12 Note the method of finding the solution and show a conceptual understanding of the method by solving similar problems.

8.2.1 Add, subtract, multiply, and divide rational numbers (integers, fractions, and terminating decimals) in multi-step problems.
8.2.4 Use mental arithmetic to compute with common fractions, decimals, powers, and percents.