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Target Countdown Puzzles
by Giulio Zambon

ISBN: 978-1-4928-1277-7
Publisher: MatheMagics Asia
Published in: 2013. Pages: 148.
Available in print from the publisher and from Amazon.

Two hundred and eighty puzzles suitable for all solvers, one hundred and twenty for more experienced solvers, and one hundred for those who like to be challenged.

The goal of Target Countdown is to apply the four basic mathematical operations to some or all of a given set of numbers to calculate a target result.

For example, you can solve the standard puzzle   4  10  3  9  Target = 2 as follows: 3 - 10 + 9

And here is another example: the solution of the puzzle   50  25  5  6  2  1  Target = 8 is 5 - 1 x 2

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