**Unit 2: Operations with Rational Numbers**

**This unit should take appropriately 16 instructional days**

**This unit should take appropriately 16 instructional days**

Students will understand that…

- all fractions have an equivalent repeating or terminating decimal representation
- all rational decimals can be written as a fraction
- there is an algorithm used to add, subtract, multiply and divide positive and negative decimals
- computing with negative fractions and decimals is similar to computing with negative integers
- you can use a variety of tools to solve real world mathematical problems with positive and negative rational numbers in any form.

Essential Vocabulary:

Additive Inverse

Clustering Estimation

Compatible Numbers

Complex Fraction

Equivalent Fractions

Estimating

Front End Estimation

Multiplicative Inverses

Rational Number

Repeating Decimal

Round and Adjusting Estimation

Terminating Decimal

Factor

Fraction

Integer

Opposite