# 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

#### 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.