Cross Numbers: A Collection of 32 Mathematical Puzzles (Back to fundamentals)

by JohnParker (Author)

• Used

  Paperback
  2000

  $3.45

  Cross numbers are the mathematical equivalents of crossword puzzles. The earlier puzzles in this book require simple arithmetic and basic knowledge. For the final puzzles, access to a calculator would be helpful.

• New

  Paperback
  2000

  $14.57

  Cross numbers are the mathematical equivalents of crossword puzzles. The earlier puzzles in this book require simple arithmetic and basic knowledge. For the final puzzles, access to a calculator would be helpful.