OH.NNSO. Number, Number Sense and Operations: Students demonstrate number sense, including an understanding of number systems and operations and how they relate to one another. Students compute fluently and make reasonable estimates using paper and pencil, technology-supported and mental methods.
NNSO.12. Grade Level Indicator: Computation and Estimation: Analyze and solve multi-step problems involving addition, subtraction, multiplication and division using an organized approach, and verify and interpret results with respect to the original problem.
NNSO.13. Grade Level Indicator: Computation and Estimation: Use a variety of methods and appropriate tools for computing with whole numbers; e.g., mental math, paper and pencil, and calculator.
NNSO.14. Grade Level Indicator: Computation and Estimation: Demonstrate fluency in adding and subtracting whole numbers and in multiplying and dividing whole numbers by 1- and 2-digit numbers and multiples of ten.
NNSO.6. Grade Level Indicator: Meaning of Operations: Use associative and distributive properties to simplify and perform computations; e.g., use left to right multiplication and the distributive property to find an exact answer without paper and pencil.
NNSO.G. Model and use commutative and associative properties for addition and multiplication.
NNSO.K. Analyze and solve multi-step problems involving addition, subtraction, multiplication and division of whole numbers.
NNSO.L. Use a variety of methods and appropriate tools (mental math, paper and pencil, calculators) for computing with whole numbers.