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# Unit 1: Number systems

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Unit test

### Practice

- Classify numbers: rational & irrationalGet 5 of 7 questions to level up!
- Classify numbersGet 5 of 7 questions to level up!
- Identifying decimal expansion of rational and irrational numbersGet 3 of 4 questions to level up!

### Learn

### Practice

- Writing fractions as repeating decimalsGet 5 of 7 questions to level up!
- Converting repeating decimals to fractionsGet 5 of 7 questions to level up!
- Converting multi-digit repeating decimals to fractionsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 480 Mastery points

### Learn

### Practice

- Rational vs. irrational expressionsGet 3 of 4 questions to level up!
- Adding and subtracting irrational numbersGet 3 of 4 questions to level up!

### Learn

- No videos or articles available in this lesson

### Practice

- Multiplying and dividing irrational numbersGet 3 of 4 questions to level up!
- Multiplying irrational expressionsGet 3 of 4 questions to level up!
- Rationalising the denominator (basic)Get 3 of 4 questions to level up!
- Rationalising the denominator (advanced)Get 3 of 4 questions to level up!

Level up on the above skills and collect up to 480 Mastery points

### Learn

### Practice

- Unit-fraction exponentsGet 3 of 4 questions to level up!
- Fractional exponentsGet 3 of 4 questions to level up!
- Evaluate radical expressions challengeGet 3 of 4 questions to level up!

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Level up on all the skills in this unit and collect up to 1,500 Mastery points!