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# Unit 18: Add and subtract negative numbers

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## About this unit

Learn about numbers below 0 and how they relate to positive numbers. Add, subtract, multiply and divide negative numbers.### Practice

- Negative numbers on the number lineGet 5 of 7 questions to level up!
- Interpreting negative numbersGet 5 of 7 questions to level up!

### Practice

- Negative symbol as oppositeGet 3 of 4 questions to level up!

### Practice

- Negative fractions on the number lineGet 3 of 4 questions to level up!

### Practice

- Finding absolute valuesGet 5 of 7 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

### Learn

### Practice

- Zero pairsGet 3 of 4 questions to level up!
- Add with integer chipsGet 3 of 4 questions to level up!
- Adding negative numbers on the number lineGet 5 of 7 questions to level up!

### Practice

- Signs of sumsGet 5 of 7 questions to level up!
- Adding negative numbersGet 5 of 7 questions to level up!

### Learn

### Practice

- Subtract with integer chipsGet 3 of 4 questions to level up!
- Interpret negative number addition and subtraction expressionsGet 3 of 4 questions to level up!

### Learn

### Practice

- Understand subtraction as adding the oppositeGet 3 of 4 questions to level up!
- Subtracting negative numbersGet 5 of 7 questions to level up!

Level up on the above skills and collect up to 720 Mastery points

Level up on the above skills and collect up to 160 Mastery points

Up next for you:

Level up on all the skills in this unit and collect up to 1600 Mastery points!