#### NC.7.NS.1

Apply and extend previous understandings of addition and subtraction to add and subtract rational numbers, using the properties of operations, and describing real-world contexts using sums and differences.

#### NC.7.NS.2

Apply and extend previous understandings of multiplication and division.

#### NC.7.NS.2b

Apply properties of operations as strategies, including the standard algorithms, to multiply and divide rational numbers and describe the product and quotient in real-world contexts.