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# Unit 5: Arithmetic progressions

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- Extend arithmetic sequencesGet 3 of 4 questions to level up!
- Explicit formulas for arithmetic sequencesGet 3 of 4 questions to level up!

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- Common difference (intermediate)Get 3 of 4 questions to level up!
- Middle term of an arithmetic progressionGet 3 of 4 questions to level up!
- Common difference (advanced)Get 3 of 4 questions to level up!

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- nth term of an arithmetic progression (basic)Get 3 of 4 questions to level up!
- nth term of an arithmetic progression (intermediate)Get 3 of 4 questions to level up!
- nth term of an arithmetic progression (advanced)Get 3 of 4 questions to level up!
- nth term challenge problemsGet 3 of 4 questions to level up!

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### Practice

- Finding first term and common difference when sum is givenGet 3 of 4 questions to level up!
- Finding number of terms when sum of an arithmetic progression is givenGet 3 of 4 questions to level up!
- Sum of n terms (intermediate)Get 3 of 4 questions to level up!
- Sum of n terms (advanced)Get 3 of 4 questions to level up!
- Comparing arithmetic progressionsGet 3 of 4 questions to level up!

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

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### Practice

- Arithmetic progression applied to divisibilityGet 3 of 4 questions to level up!
- nth term word problemsGet 3 of 4 questions to level up!
- Word problems: Sum to n terms of an arithmetic progressionGet 3 of 4 questions to level up!

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