Arithmetic or nah?
Find the common difference
Write the formula
Find the nth term
Surprise me!
100

Is this sequence Arithmetic? If yes, tell the common difference

5, 12, 15, 22

No

100

5,8,11,14,17


d=3

100

Given the arithmetic sequence 1,3, 5, 7,9,... write an explicit formula

f(n)= 1+(n-1)(2)

100

f(n)=1+(n-1)(4)

find the 5th term in the arithmetic sequence

f(5)= 17

100

Is this sequence Arithmetic? If yes, tell the common difference


15, 12, 9, 6

Yes d=-3

200

Is this sequence arithmetic? If yes, tell the common difference

9, 13, 17, 21

Yes, d= 4

200

200,140,80,20,-40,-100

d=-60

200

Given the arithmetic sequence 20,16,12,8,4... write an explicit formula

f(n)=20+(n-1)(-4)

200

f(n)=16+(n-1)(-2)

find the 50th term in the arithmetic sequence

f(50)=-82

200

Given the arithmetic sequence, find the next 3 terms

18, 22, 26, 30, _____, _____, _____

34, 38, 42

300

Is this sequence arithmetic? If yes, tell the common difference

-5, -8,-11,-14

Yes, d= -3

300

4.5, 3.75, 3, 2.25, 1.5

d=-0.75

300

Given the arithmetic sequence 50, 125, 200, 275,... write a recursive formula

f(n)= f(n+1)+75

300

101, 92, 83, 74,...find the 17th term in the arithmetic sequence

f(17)=-43

300

Given the arithmetic sequence, find the next 3 terms

12, 19, 26, 33, _____, _____, _____

40, 47, 54

400

Is this sequence arithmetic? If yes, tell the common difference 

1, 1.75, 2.5, 3.25

Yes, d=0.75

400

-8, -3, 2, 7, 12

d=5

400

Given the arithmetic sequence -16, -21, -26,... write an explicit formula

f(n)=-16+(n-1)(-5)

400

7,13,19,...find the 24th term in the arithmetic sequence

f(24)=145

400

Given the arithmetic sequence 12,21,30,39,... write an explicit formula

f(n)=12+(n-1)(9)

500

Is this sequence arithmetic? If yes, tell the common difference

-32, -54, -76, -98

Yes, d=-22

500

3/2, 7/4, 2, 9/4, 5/2, 11/4

d= 1/4 or 0.25

500

Given the arithmetic sequence 30,26,22,18,... write a recursive formula

f(n)=f(n-1)-4

500

1, 3, 5, 7, 9...find the 3023rd term in the arithmetic sequence

f(3023)=6045

500

Find the common difference 120, 138, 156, 174,...

d= 18

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