Mathematical wrinkles for teachers and private learners .. (1912)
Jones, Samuel I. (Samuel Isaac), b. 1880 · Gunter, Tex., S.I. Jones · leaf 217
by three matches which form an equilateral triangle. 4. The same. 5. To find the digit crossed out subtract the remainder from the next highest multiple of nine. 6. To find the figure struck out subtract the remainder from the next highest multiple of nine. 7. 12 inches 8. 99|. 9. In forming the… … dimensions will not make a triangle. 22. 5 and 6 are 11. 21. None.
Mathematics · Mathematical recreations
Internet Archive · Cornell University Library · Public domain (published before 1931). Free to use for anything.
![An illustration from Mystic Masonry, or, the Symbols of Freemasonry and Greater Mysteries of Antiquity (1911) [Supplemental Harmonic Series] (1911)](https://img.insideoutlibrary.com/img/200/ia-mysticmasonryors00buck-298-7.webp)
