Number-Crunching Math Puzzles by Dick Hess

Number-Crunching Math Puzzles by Hess, Dick - paperback - Good

Math Puzzles for the Clever Mind - Paperback By Niederman, Derrick - VERY GOOD

Number-Crunching Math Puzzles, Hess, Dick

Math Tricks, Puzzles and Games - Paperback By Blum, Raymond - VERY GOOD

Brain Aerobics Math Puzzles - Paperback, by Niederman Derrick - Very Good

Logic Workbook for Gritty Kids: Spatial reasoning, math puzzles, word games,...

Number-Crunching Math Puzzles