Checking and securing rules for generating arithmetic sequences

12 questions

1. In the sequence 3, 7, 11, 15, 19, ... 'add four' is the __________.
2. What is the next term in this sequence? 17, 23, 29, 35, ___
3. What is the next term in this sequence? 18, 11, 4, -3, ...
4. What is the common additive difference in this sequence? 4, -1, -6, -11, ...
5. What is the next term in this sequence? 1, 3, 6, 10, 15, ... ___
6. What is the 10^\text{th} term in this sequence? -11, -2, 7, 16, 25, ... ___
7. 4,5,7,8,10,11,13, ... is not an arithmetic sequence because __________.
8. What is the next term in this arithmetic sequence? 7, 18, 29, ... ___
9. What is the next term in this arithmetic sequence? 41, 189, ... ___
10. Which of these are arithmetic sequences?
11. What is the n^\text{th} term rule of this arithmetic sequence? 9, 16, 23, 30, ...
12. What is the n^\text{th} term rule of this arithmetic sequence? 1, 0.4, -0.2, -0.8, ...

License: OGL