Computer Shopper 125/Computer Shopper CD-ROM Issue 125 (1998-07)(Dennis Publishing).iso/EuroMath/MathDemo/DataBase/Question/ID377.txt

Text File | 1996-10-25 | 1.1 KB | 58 lines

u@WeightingScore 4,3,1,1

@atGraphic 5,12
@Picture algebra\a010105.bmp
@at 80,13
Look at the following portion of a
number sequence:
@InputWidth 30
@at 40,48
34        55         89        144
@at 5,+8
What is the next number in the sequence? #[N]_
@at ,+8
@Answer 1,233
@Feedback 0,?
No, the next number is equal to the last
two added together. 89 + 144 = 233
@question
@at 5,+8
What is the number that comes before 34 in the
@at ,+3
sequence? #[N]
@at ,+8
@Answer 1,21
@Feedback 0,?
No, to find the last number you
need to subtract the first number
from the second. 55 - 34 = 21


@question
@at ,+8
If we call the current term number á, use the
expressions below to make up a general rule
for the number sequence.

@InputWidth 30
@at 60,+6
á = (#[A]) + (#[A])

@at ,+14
  #Aá-1#    #Aá-2#    #Aá#

@Answer 2, 1&2=á-1|á-2,*
@Feedback E1,?,?
No, the current term á is equal to
the last term á - 1 plus the second
to last term á - 2.
@Feedback 0,?,?
No, the current term á is equal to
the last term á - 1 plus the second
to last term á - 2.
@feedback 2
Correct.

t