The PuzzlemakerDr. David Shoenthal Rules:Professor of Mathematics, ChairLongwood University 1. The digits 1 through 9 appear in each row and each column exactly [email protected] 2. Digits can appear in a shaded region multiple times as long as Rule 1 isn’t broken. 3. Digits in each region must either add or multiply to the indicated number. Both the operation and the sum/product are indicated in each region. 4. Squares with multiple colors (for example, the square in row 1, column 6) contain a number that’s used in the operation for adjacent regions of each of those colors. 5. The puzzles are rotationally symmetric--the board can be rotated by 90 degrees and the design remains the same. Answers will be featured in the Fall 2018 issue of the Virginia Mathematics Teacher.Virginia Mathematics Teacher vol. 44, no. 2 51
Conferences of Interest Virginia Council of Teachers of Mathematics | www.vctm.org 2018 Annual PME International Conference Umeå, Sweden: July 3-8, 2018 MAA: Math Fest Denver, Colorado: August 1-4, 2018 2018 Regional NCTM Conferences Hartford, Connecticut: October 4-6, 2018 Kansas City, Missouri: November 1-3, 2018 Seattle, Washington: November 28-30, 2018 2018 Annual BRTCM Conference Elliston, VA: October 8, 2018 2018 Annual PME-NA Conference Greenville, South Carolina: November 15-18, 2018 2018 Annual ATCM ConferenceYogyakarta State University, Indonesia: November 20-24, 2018Virginia Mathematics Teacher vol. 44, no. 2 ISSN 2474-8749 52
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