This is a range of small interesting visual math puzzles with roman numerals and matchsticks.
Directions: In every row add just one matchstick to make the equation valid.
***** Commercial use is allowed. *****
Download zip folder contains one JPEG file with both puzzles and answers, two PNG files with transparent background (one for puzzles, other for answers). All three graphic files are of high quality for crisp and clear printing or display.
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