#### 7.NS.A.1

Apply and extend previous understandings of addition and subtraction to add and subtract rational numbers; represent addition and subtraction on a horizontal or vertical number line diagram.

#### 7.NS.A.1d

Apply properties of operations as strategies to add and subtract rational numbers.

#### 7.NS.A.2

Apply and extend previous understandings of multiplication and division and of fractions to multiply and divide rational numbers.

#### 7.NS.A.2c

Apply properties of operations as strategies to multiply and divide rational numbers.