Number patterns II

This task is about finishing number patterns.
Finish each pattern by writing the missing numbers in the boxes.

Question 1Change answer

a)  3, 6, 9, 12, 

Question 1Change answer

b)  42, 40, 38, 36, 

Question 1Change answer

c)  4, 10, 16, 22, 

Question 1Change answer

d)  2, 13, 24, 35, 

Question 1Change answer

e)  81, 72, 63, 54,