Enter Title

nth term

100

What is the 5th term for the arithmetic sequence 6, 8, 10, 12, ...?

a₅ = ?

14

200

What is the 8^th term for the arithmetic sequence 8, 12, 16, 20, ...?

a₈ = ?

36

300

What is the 12^th term for the arithmetic sequence 7, 13, 19, 25, ...?

a₁₂ = ?

73

400

What is the 22^nd term for the arithmetic sequence 20, 17, 14, 11, ...?

a₂₂ = ?

-43

500

What is the 34^th term for the arithmetic sequence 13, 20, 27, 34, ...?

a₃₄ = ?

244

Find the common difference

100

If the 4^th term is 7, and the 8^th term is 27, what is the common difference?

a₄ = 7

a₈ = 27

d = 5

200

If the 5^th term is 3, and the 11^th term is 39, what is the common difference?

a₅ = 3

a₁₁ = 39

d = 6

300

If the 3^rd term is -3, and the 6^th term is -15, what is the common difference?

a₃ = -3

a₆ = -15

d = -4

400

If the 2^nd term is 5, and the 12^th term is 105, what is the common difference?

a₂ = 5

a₁₂ = 105

d = 10

500

If the 8^th term is 14, and the 15^th term is -42, what is the common difference?

a₈ = 14

a₁₅ = -42

d = -8

Find the first term

100

If the 4^th term is 36 (a₄ = 36), and the common difference is 4 (d = 4), what is the 1^st term (a₁)?

a₁ = 24

200

If the 5^th term is 20 (a₅ = 20), and the common difference is -2 (d = -2), what is the 1^st term (a₁)?

a₁ = -8

300

If the 19^th term is 100 (a₁₉ = 100), and the common difference is 5 (d = 5), what is the 1^st term (a₁)?

a₁ = 5

400

If the 8^th term is 15 (a₈ = 15), and the common difference is -8 (d = -8), what is the 1^st term (a₁)?

a₁ = 71

500

If the 36^th term is -72 (a₃₆ = -72), and the common difference is -12 (d = -12), what is the 1^st term (a₁)?

a₁ = 348