Volume 8 Math Stars Worksheet Page 35
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35Vol. 8 No. 10
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...
≈
21
1. [ a) 16/3, 16/9, 16/27 ; b) 2 (2.5)
454,747,350.9]
2. [ a)
b) 47 square units]
right view
back view
front view
3. [30 books] An example of an application of least common multiple (LCM), i.e., [6, 15] = 30.
4. [squares of area three, six, and seven cannot be drawn]
5. [ .159] The addends will vary; in tenths place the digits 0 and 1, in hundredths place the digits 2 and
3, and in thousandths place 4 and 5.
6. [she owes $255.05] Compute $200 + (.15)($367).
2
7. [50, 72; y = 2x
]
8. [ answers will vary; 5 in the center circle, with 4 and 1 in one line and 2 and 3 in the other]
The common sum is 10.
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