Name that Sequence
Arithmetic
Neither
Sums
Geometric
100
Is the following sequence Arithmetic, Geometric or Neither? 12, 14, 16, 18, 20, .....
What is arithmetic?
100
This is the value of the 60th term when the 1st term is 5 and the common difference is -5.
What is -290?
100

What are the next 3 terms in this sequence?

1/2, 1/4, 1/6, 1/8...

1/10, 1/12, 1/14...

100

What is the sum of this sequence:

4 + 7 + 10 + 13 + ... + 46

375

100
This is the value of the 10th term when the 1st term is 1 and the common ratio is 3.
What is 19683?
200
Is the following sequence Arithmetic, Geometric or Neither? 3, 8, 13, 18, 22, .....
What is arithmetic?
200
The value of the 1st term when the 23rd term is 36 and the common difference is 2.
What is -8?
200

What are the next 3 terms in this sequence?

1, 1/4, 1/9, 1/16...

1/25, 1/36, 1/49

200

What is the sum of the first 19 terms of this sequence:

-2, 4, -8, 16, -32 ... 

What is -349,526

200
This is the value of the first term when the 5th term is 512 and the common ratio is 4.
What is 2
300
Is the following sequence Arithmetic, Geometric or Neither? 4, 11, 17, 24, 34, ....
What is neither?
300

Mr. Mao is training to compete in the next summer Olympics. He swims 3 laps on his first day of training, 7 laps on the second day, 11 laps on the third day, and so on. How many laps will he have swum in total by the end of the first week? 

105 laps!

300

Write a formula in terms of n:

1, 1/4, 1/9, 1/16...

an = 1/n2

300

You won a radio contest and the prize is cash awarded as follows. The first day you receive 2 cents, the second day you receive 6 cents, the third day you receive 18 cents, and so on for a total of 15 days. How much money will you have won in total?

$143,489.06

300

Find the 14th term of this sequence:

30, 27, 24.3, 21.87, 19.683...

What is 7.626

400

Give a formula in terms of n (simplified form) for this sequence 12, 16, 20, 24...

an = 8+4n

400
This is the value of the 125th term when the 10th term is 15 and the 11th term is 27.
What is 1295?
400

Write a formula for this sequence:

-1, -4, -9, -16...

an = -n2

400

What is the sum of the first 16 terms in this sequence:

3, 10, 17, 24...

Sn = 888

400
This is the common ratio when the 1st term is 2 and the 3rd term is 72.
What is 6
500

Give a formula in terms of n for this sequence 120, 90, 67.5...

an = 120(3/4)(n-1)

500
This is the common difference when the first term is 25 and the 76th term is 175.
What is 2
500

Find the 7th term of this sequence:

an = (n+2)/n2

a7 = 9/49

500

What is the sum of the first 10 terms in this sequence:

50, -10, 2, -2/5...

41.666

500

Linda receives a joke in an E-mail that asks her to forward it on to four of her friends. She forwards it, then each of her friends forwards it to four of their friends, and so on. If the pattern continues, how many people will receive the E-mail on the ninth round of forwarding?

What is 262,144 people

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