Checking and securing understanding of geometric sequences

12 questions

1. 32-21=11, 43-32=11 and 54-43=11 shows that there is __________ additive difference between successive terms in this sequence. 21, 32, 43, 54, ...
2. Which of these sequences are arithmetic?
3. Which of the below sequences matches the description "start at 5 and add four"?
4. By what do we have to multiply 13 to get to 234? ___
5. Match the sequences to their descriptions.
6. What is the next term in this sequence? -5, 10, -20, 40, ___
7. Arithmetic (linear) sequences have a common additive difference between successive terms and geometric sequences have a common __________ difference between successive terms.
8. What is the term-to-term rule of this sequence? 4, 12, 36, 108, ...
9. Which of these sequences are geometric?
10. Which of these are terms in the geometric sequence which starts like this? 1600, 400, 100, ...
11. What is the missing first term in this geometric sequence? ___, 91, 637, 4459, ...
12. What could the missing term in this geometric sequence be? 8, ... ,32

License: OGL