Show you solution. List the terms that complete a possible pattern in each of the following:

Question

a)38,33,28,23,18,_,_,_
b)640,320,160,80,_,_,_
c)7,8,15,23,38,_,_,_

Answer 1

a) What number is subtracted from each number to get the next number?

b) What number is divided into each number to get the next number?

c)
7 + 8 = 15
8 + 15 = 23
23 + ? = 38

Answer 2

a) 5 is subtracted from each so, it should be 13,8,3
b)2 is divided into each number so, it should be 40,20,10
c)23+15=38
61,99,160 Not sure(?)

Answer 3

Right on all problems! :-)