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# Unit 4: Rational numbers: addition and subtraction

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## About this unit

Fractions and decimals can be negative, too. Remember how we used subtraction to represent distances on a number line? When absolute value comes to the rescue, that works with integers, too.

### Learn

### Practice

- Absolute value to find distanceGet 5 of 7 questions to level up!

### Learn

### Practice

- Interpreting negative number statementsGet 3 of 4 questions to level up!
- Negative number addition and subtraction: word problemsGet 3 of 4 questions to level up!

### Learn

### Practice

- Commutative and associative properties of addition with integersGet 3 of 4 questions to level up!
- Equivalent expressions with negative numbersGet 3 of 4 questions to level up!

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