Crux Mathematicorum
Vol. 45, No. 10
December, 2019
PageContents
539 Editorial — Kseniya Garaschuk
540 MathemAttic: No. 10
540 Problems: MA46–MA50
542 Solutions: MA21–MA25
546 Problem Solving Vignettes: No. 9 — Shawn Godin
550 Teaching Problems: No. 7 — John McLoughlin
554 Olympiad Corner: No. 378
554 Problems: OC456–OC460
556 Solutions: OC431–OC435
562 How To Write A Crux Article...Revisited! — Robert Dawson
564 Problems: 4491–4500
568 Solutions: 4441–4450