# 1.07 Simplifying numerical expressions involving integers

## Interactive practice questions

Evaluate $9+\left(-7\right)-4$9+(7)4

Easy
Less than a minute

Evaluate $-9+6-\left(-17\right)$9+6(17)

Evaluate $20+\left(-14\right)-\left(-2\right)-18$20+(14)(2)18

Evaluate $6-\left(13-3\right)$6(133)

### Outcomes

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

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

#### 7.NS.2

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

#### 7.NS.2.c

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