Volume 8 Math Stars Worksheet Page 3
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35Vol. 8 No. 1
About these newsletters...
The purpose of the MathStars Newsletters is to challenge students beyond the classroom
setting. Good problems can inspire curiosity about number relationships and geometric
properties. It is hoped that in accepting the challenge of mathematical problem solving,
students, their parents, and their teachers will be led to explore new mathematical hori-
zons.
As with all good problems, the solutions and strategies suggested are merely a sample of
what you and your students may discover. Enjoy!!
Discussion of the problems...
1. (5/3)
15
3
15
5
2.
-20
-10
-20
0.5
32
3. (15 outfits) The n x m rule applies here, i.e. 3 x 5 = 15.
4. (11/12, -11, 12/11; -1/11) The number before 12 can be described by (x-1)/x =12.
5. (90) A three-digit palandrome can be a number like 444 or 434. The first and third digits can be any
number one through nine. The middle digit can be any of ten digits zero through nine. Using the n x m
rule there are 9 x 10 or 90 possibilities.
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