Question

List the terms that complete a possible pattern in each of the following and state whether the pattern is arithmetic, geometric, or neither:

(a) 38, 33, 28, 23, 18, …


(b) 640, 320, 160, 80, …


(e) 1, ___, ___, ___ 25, 36, 49

Answer 1

Study this site, and then post what you think the answers are.

http://www.mathsisfun.com/numberpatterns.html

Answer 2

a)The pattern is continued by subtracting 5 each time.


b)The pattern is continued by dividing by 2 each time.


e)

1,4,9,16,25,36,49


In this series,all numbers are the squares of consecutive integers.

1^2=1

2^2=4

3^2=9

4^2=16

5^2=25

6^2=36

7^2=49