3,12,21, __ , __ ,__
what is the missing number ?
can you guys answer this ?
12 - 3 = 9
21 - 12 = 9
hmmm
x - 21 = 9 maybe
or
x = 30 etc
what is the missing number ?
can you guys answer this ?
21 - 12 = 9
hmmm
x - 21 = 9 maybe
or
x = 30 etc