Goodwill Publishing House
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Packed with over 70 brain-bending math teasers - from grid and dot games to stretchy shapes and squiggly lines, from vanishing tricks to amazing maps and mazes - these Math Challenges are bound to keep you entertained!
• Fit your entire head through a hole in a 3 X 5 postcard!
• Learn how to escape from rope handcuffs.
• Test your speed and accuracy against various tangled line mazes.
• Decode Ben Franklin's famous doodle.
And dozens more!
This great assortment of puzzles, games, and tricks will sharpen your wits about probability, logical thinking continuous networks, number series, spatial relations, and a whole lot more. So grab your pencil, don your thinking cap, and prepare to be challenged!