# 2.01 Operations with decimals

## Interactive practice questions

Evaluate $8.5+\left(-4.1\right)$8.5+(4.1).

Easy
Less than a minute

Evaluate $-8.3+8.4$8.3+8.4.

Evaluate $5.4+\left(-7.8\right)$5.4+(7.8).

Evaluate $-7.3+3.8$7.3+3.8.

### Outcomes

#### NY-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.

#### NY-7.NS.1d

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

#### NY-7.NS.2

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

#### NY-7.NS.2c

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