Leadership Program

Exploring Discrete Mathematics
in the Classroom

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DIMACS || Leadership Program || LP Web Pages || Lesson Ideas
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New Year's Magic Worksheet

395 312 474 318 354 537
158 75 237 81 117 300
455 372 534 378 414 597
330 247 409 253 289 472
153 70 232 76 112 295
487 404 566 410 446 629
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Directions:

  1. Choose a number. Circle it. Cross out all of the numbers in the same row and same column as the number you chose.
  2. Choose a number that is not circled or crossedout. Circle it. Cross out all the numbers in the same row and the same column as the number you chose.
  3. Continue the same process of circling and crossing out numbers until there is only one number left. Circle it.
  4. Add the six circled numbers.
  5. Choose different numbers and compare the second answer with the first. Were they the same, or different? Compare your answers with those found by others in your class.

The New Year's Magic Lesson Plan

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For more information, please send mail to Judy Ann Brown
Web page created by Judy Ann Brown on Monday, December 22, 1997.

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