Correct Equation

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Arrange seven matches into the equation shown in the illustration. It can be seen the equation itself is not correct.

Puzzle 1. Move one match to a new position in order to make this equation correct.

Puzzle 2. Move three matches to new positions to get a correct equation. This puzzle can be solved in two different ways.

Puzzle 3*. Move two matches to new positions to get a correct equation.

In all three puzzles it is not allowed to break the matches and an equation sign has to remain in the final expression.

*The puzzle with a complete solution has been sent to us by Roger Kirkman. Many thanks!

Last Updated: October 22, 2005
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