Volume 8 Math Stars Worksheet Page 22
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35Vol. 8 No. 6
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. [1/27] A cubic yard is 3' by 3' by 3' or 27 cubic feet.
2. [39 cents]
3
2
3.[a) 30 cm
; b) 62 cm
] The figure measures 2 by 3 by 5 centimeters.
4. [11/36] This answer assumes we are considering at least one die is three. If the question considers
exactly one die is three the probability is 10/36.
5. [5/48] Solving the equation 7/12 + n = 11/16, the value for n = 11/16 - 7/12 = (33 - 28)/48 or 5/48.
.
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[3]
Spinner
Die
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7. [Twelve 7-person rafts and one 5-person raft is the cheapest combination at $360.00 per day]
Making a chart of configurations and cost is a good strategy for students to organize their work.
8. [parallelogram] Reasons will vary.
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