Arithmetic and Geometric Sequences
Numbers and Operations, and more...
 
1. EASY

What is the 6th term in this sequence?
1, 4, 9, 16...

  1. 36
  2. 25
  3. 37
  4. 27
  5. 34
 
2. MEDIUM

What is 1 + 2 + 3 + ... + 98 + 99 + 100?

 
3. MEDIUM

Benny has purchased 10 books. The 1st book cost $1, the 2nd, $2, the 3rd, $4, and the 4th ,$8, and so on. How much did Benny pay for the 10 books?

  1. 1024
  2. 1023
  3. 1025
  4. 511
  5. 512
 
4. MEDIUM

What is the 8th term in this sequence?
3, 4, 6, 9...

 
5. MEDIUM

What is 1 + 3 + 5 + ... + 95 + 97 + 99?