Comparing arithmetic and geometric sequences worksheet

One question decides everything: does the sequence go up by adding or by multiplying. Once you know, the step falls out of any two neighboring terms.



Sigma Prep · sigmaprep.io/worksheets Name Arithmetic or Geometric Date Period Answer each question. Geometric or arithmetic, and find the step: $- 9, 3, 15, 27, \dots$ Geometric or arithmetic, and find the step: $9, 18, 36, 72, \dots$ Geometric or arithmetic, and find the step: $- 8, - 18, - 28, - 38, \dots$ Geometric or arithmetic, and find the step: $- 8, 16, - 32, 64, \dots$ Geometric or arithmetic, and find the step: $8, - 16, 32, - 64, \dots$ Geometric or arithmetic, and find the step: $- 9, - 36, - 144, - 576, \dots$ Geometric or arithmetic, and find the step: $- 9, - 27, - 81, - 243, \dots$ Geometric or arithmetic, and find the step: $- 9, - 21, - 33, - 45, \dots$ Geometric or arithmetic, and find the step: $- 10, - 20, - 30, - 40, \dots$ Geometric or arithmetic, and find the step: $- 7, - 21, - 63, - 189, \dots$ Geometric or arithmetic, and find the step: $- 8, - 19, - 30, - 41, \dots$ Geometric or arithmetic, and find the step: $- 10, 0, 10, 20, \dots$ Geometric or arithmetic, and find the step: $10, 40, 160, 640, \dots$ Geometric or arithmetic, and find the step: $10, 19, 28, 37, \dots$ Geometric or arithmetic, and find the step: $8, 32, 128, 512, \dots$ Geometric or arithmetic, and find the step: $9, - 2, - 13, - 24, \dots$ Geometric or arithmetic, and find the step: $- 8, - 24, - 72, - 216, \dots$ Geometric or arithmetic, and find the step: $7, 19, 31, 43, \dots$ Geometric or arithmetic, and find the step: $- 8, - 32, - 128, - 512, \dots$ Geometric or arithmetic, and find the step: $- 7, 14, - 28, 56, \dots$ Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep

Sigma Prep · sigmaprep.io/worksheets

Name

Arithmetic or Geometric

Date Period

Answer each question.

Geometric or arithmetic, and find the step: $- 9, 3, 15, 27, \dots$
Geometric or arithmetic, and find the step: $9, 18, 36, 72, \dots$
Geometric or arithmetic, and find the step: $- 8, - 18, - 28, - 38, \dots$
Geometric or arithmetic, and find the step: $- 8, 16, - 32, 64, \dots$
Geometric or arithmetic, and find the step: $8, - 16, 32, - 64, \dots$
Geometric or arithmetic, and find the step: $- 9, - 36, - 144, - 576, \dots$
Geometric or arithmetic, and find the step: $- 9, - 27, - 81, - 243, \dots$
Geometric or arithmetic, and find the step: $- 9, - 21, - 33, - 45, \dots$
Geometric or arithmetic, and find the step: $- 10, - 20, - 30, - 40, \dots$
Geometric or arithmetic, and find the step: $- 7, - 21, - 63, - 189, \dots$
Geometric or arithmetic, and find the step: $- 8, - 19, - 30, - 41, \dots$
Geometric or arithmetic, and find the step: $- 10, 0, 10, 20, \dots$
Geometric or arithmetic, and find the step: $10, 40, 160, 640, \dots$
Geometric or arithmetic, and find the step: $10, 19, 28, 37, \dots$
Geometric or arithmetic, and find the step: $8, 32, 128, 512, \dots$
Geometric or arithmetic, and find the step: $9, - 2, - 13, - 24, \dots$
Geometric or arithmetic, and find the step: $- 8, - 24, - 72, - 216, \dots$
Geometric or arithmetic, and find the step: $7, 19, 31, 43, \dots$
Geometric or arithmetic, and find the step: $- 8, - 32, - 128, - 512, \dots$
Geometric or arithmetic, and find the step: $- 7, 14, - 28, 56, \dots$



Sigma Prep · sigmaprep.io/worksheets Name Arithmetic or GeometricAnswer keyVersion 1 Date Period Answer each question. Geometric or arithmetic, and find the step: $- 9, 3, 15, 27, \dots$ Arithmetic, $d = 12$ Geometric or arithmetic, and find the step: $9, 18, 36, 72, \dots$ Geometric, $r = 2$ Geometric or arithmetic, and find the step: $- 8, - 18, - 28, - 38, \dots$ Arithmetic, $d = - 10$ Geometric or arithmetic, and find the step: $- 8, 16, - 32, 64, \dots$ Geometric, $r = - 2$ Geometric or arithmetic, and find the step: $8, - 16, 32, - 64, \dots$ Geometric, $r = - 2$ Geometric or arithmetic, and find the step: $- 9, - 36, - 144, - 576, \dots$ Geometric, $r = 4$ Geometric or arithmetic, and find the step: $- 9, - 27, - 81, - 243, \dots$ Geometric, $r = 3$ Geometric or arithmetic, and find the step: $- 9, - 21, - 33, - 45, \dots$ Arithmetic, $d = - 12$ Geometric or arithmetic, and find the step: $- 10, - 20, - 30, - 40, \dots$ Arithmetic, $d = - 10$ Geometric or arithmetic, and find the step: $- 7, - 21, - 63, - 189, \dots$ Geometric, $r = 3$ Geometric or arithmetic, and find the step: $- 8, - 19, - 30, - 41, \dots$ Arithmetic, $d = - 11$ Geometric or arithmetic, and find the step: $- 10, 0, 10, 20, \dots$ Arithmetic, $d = 10$ Geometric or arithmetic, and find the step: $10, 40, 160, 640, \dots$ Geometric, $r = 4$ Geometric or arithmetic, and find the step: $10, 19, 28, 37, \dots$ Arithmetic, $d = 9$ Geometric or arithmetic, and find the step: $8, 32, 128, 512, \dots$ Geometric, $r = 4$ Geometric or arithmetic, and find the step: $9, - 2, - 13, - 24, \dots$ Arithmetic, $d = - 11$ Geometric or arithmetic, and find the step: $- 8, - 24, - 72, - 216, \dots$ Geometric, $r = 3$ Geometric or arithmetic, and find the step: $7, 19, 31, 43, \dots$ Arithmetic, $d = 12$ Geometric or arithmetic, and find the step: $- 8, - 32, - 128, - 512, \dots$ Geometric, $r = 4$ Geometric or arithmetic, and find the step: $- 7, 14, - 28, 56, \dots$ Geometric, $r = - 2$ Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep

Sigma Prep · sigmaprep.io/worksheets

Name

Arithmetic or GeometricAnswer keyVersion 1

Date Period

Answer each question.

Geometric or arithmetic, and find the step: $- 9, 3, 15, 27, \dots$ Arithmetic, $d = 12$
Geometric or arithmetic, and find the step: $9, 18, 36, 72, \dots$ Geometric, $r = 2$
Geometric or arithmetic, and find the step: $- 8, - 18, - 28, - 38, \dots$ Arithmetic, $d = - 10$
Geometric or arithmetic, and find the step: $- 8, 16, - 32, 64, \dots$ Geometric, $r = - 2$
Geometric or arithmetic, and find the step: $8, - 16, 32, - 64, \dots$ Geometric, $r = - 2$
Geometric or arithmetic, and find the step: $- 9, - 36, - 144, - 576, \dots$ Geometric, $r = 4$
Geometric or arithmetic, and find the step: $- 9, - 27, - 81, - 243, \dots$ Geometric, $r = 3$
Geometric or arithmetic, and find the step: $- 9, - 21, - 33, - 45, \dots$ Arithmetic, $d = - 12$
Geometric or arithmetic, and find the step: $- 10, - 20, - 30, - 40, \dots$ Arithmetic, $d = - 10$
Geometric or arithmetic, and find the step: $- 7, - 21, - 63, - 189, \dots$ Geometric, $r = 3$
Geometric or arithmetic, and find the step: $- 8, - 19, - 30, - 41, \dots$ Arithmetic, $d = - 11$
Geometric or arithmetic, and find the step: $- 10, 0, 10, 20, \dots$ Arithmetic, $d = 10$
Geometric or arithmetic, and find the step: $10, 40, 160, 640, \dots$ Geometric, $r = 4$
Geometric or arithmetic, and find the step: $10, 19, 28, 37, \dots$ Arithmetic, $d = 9$
Geometric or arithmetic, and find the step: $8, 32, 128, 512, \dots$ Geometric, $r = 4$
Geometric or arithmetic, and find the step: $9, - 2, - 13, - 24, \dots$ Arithmetic, $d = - 11$
Geometric or arithmetic, and find the step: $- 8, - 24, - 72, - 216, \dots$ Geometric, $r = 3$
Geometric or arithmetic, and find the step: $7, 19, 31, 43, \dots$ Arithmetic, $d = 12$
Geometric or arithmetic, and find the step: $- 8, - 32, - 128, - 512, \dots$ Geometric, $r = 4$
Geometric or arithmetic, and find the step: $- 7, 14, - 28, 56, \dots$ Geometric, $r = - 2$

How to do these

Geometric or arithmetic, and find the step: $3, 6, 12, 24, \dots$

The gaps are 3, 6, 12, which are not equal, so it is not arithmetic.
Each term is double the one before.

The answer is Geometric, $r = 2$ .

Where students go wrong

Checking only the first pair. 2, 4, 6, 12 starts like a geometric sequence and is neither, so the step has to hold all the way along before you name it.

Also called common difference, common ratio or arithmetic means.

Questions about these worksheets

Yes. Every comparing arithmetic and geometric sequences sheet is free to print and free to download as a PDF. There is no account to make, no email to hand over and no limit on how many you take.

Yes. The answer key prints on a second page, and you can choose whether it shows each question beside its answer or just the answers in a list.

Yes. Print straight from the page, or download the PDF and print that. The sheet is laid out for paper rather than squeezed off a screen, so there is room to work under each question, and the answer key comes out on its own page.

Algebra 2 is usually taken around 10th or 11th grade, though schools vary and plenty of students meet it earlier or later. Pick the difficulty rather than the grade: the easy level suits a first lesson on it, the hard level suits review before a test.

Yes, as many as you like. The questions are built fresh each time rather than picked from a fixed set of files, so pressing Generate gives a new sheet. That is what you want for a second class, a retake, or two students sitting next to each other.

That is the closest comparison, and Kuta Software is good software. It is also paid software you install on a computer. These worksheets run in a browser tab for free, with no account and nothing to install. Like Kuta, the comparing arithmetic and geometric sequences questions are generated when you ask for them rather than pulled from a fixed set of files, so two classes never get the same sheet, and the answer key comes with it.

Yes. There are three levels, and you can tick more than one for a sheet that mixes them, in which case the questions come out easiest first. The harder levels are not just larger numbers: they ask for something the easy ones do not.

Checking only the first pair. 2, 4, 6, 12 starts like a geometric sequence and is neither, so the step has to hold all the way along before you name it.

Comparing arithmetic and geometric sequences worksheet

Arithmetic or Geometric

Arithmetic or GeometricAnswer keyVersion 1

How to do these

Where students go wrong

Questions about these worksheets

Are these comparing arithmetic and geometric sequences worksheets free?+

Do the comparing arithmetic and geometric sequences worksheets come with an answer key?+

Are these comparing arithmetic and geometric sequences worksheets printable?+

What grade are these comparing arithmetic and geometric sequences worksheets for?+

Can I get a different version of the same comparing arithmetic and geometric sequences worksheet?+

Is this a free alternative to Kuta Software for comparing arithmetic and geometric sequences?+

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What do students get wrong with comparing arithmetic and geometric sequences?+