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MathSearch Puzzles
by Giulio Zambon

ISBN: 978-1-4936-2049-4
Publisher: MatheMagics Asia
Published in: 2013. Pages: 194.
Available in print from the publisher and from Amazon.

Twenty 6x6 puzzles suitable for all solvers, forty 8x8s for more experienced solvers, and sixty 10x10s for those who like to be challenged.

There are mathematical expressions hidden in the grid of numbers and you have to reveal them by writing the correct math signs in the appropriate spots.