Grade 9 · Algebra 1
Sequences
304 problems in this skill, each with a solver-verified answer key. Answers are checked the moment you submit — with a hint if you want one and a worked solution afterwards.
What the problems look like
A few statements from this skill. Answers, hints and worked solutions live in the practice session.
Warm-up
The arithmetic sequence has first term 3 and common difference 5. What is the 10th term?
Warm-up
The geometric sequence has first term 2 and common ratio 3. What is the 5th term?
Warm-up
Let a_n = n² + 2n. Find a8.
Problems shown under their original terms: Generated (solver-verified).
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