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# Unit 3: Playing with numbers

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Unit test

### Practice

- Relate factors and multiplesGet 5 of 7 questions to level up!
- Intro to factors and multiplesGet 5 of 7 questions to level up!

### Practice

- Identify prime numbersGet 5 of 7 questions to level up!
- Identify composite numbersGet 5 of 7 questions to level up!
- Conceptual questions on odd, even, prime, composite numbersGet 5 of 7 questions to level up!

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

### Learn

- No videos or articles available in this lesson

### Practice

- Identify common factorsGet 3 of 4 questions to level up!
- Identify co-prime numbersGet 3 of 4 questions to level up!

### Practice

- Divisibility tests for 8 and 11Get 5 of 7 questions to level up!
- DivisibilityGet 5 of 7 questions to level up!
- Divisibility by 6, 12, 18 and 20Get 3 of 4 questions to level up!

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

### Practice

- Prime factorizationGet 5 of 7 questions to level up!
- Prime factorization of larger numbersGet 3 of 4 questions to level up!

### Learn

### Practice

- Greatest common factorGet 5 of 7 questions to level up!

Level up on the above skills and collect up to 320 Mastery points

### Practice

- GCF & LCM word problemsGet 5 of 7 questions to level up!

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Level up on all the skills in this unit and collect up to 1,600 Mastery points!