Crux Mathematicorum Vol. 46, No. 1 « v45, n10 indexv46, n2 » January, 2020 PageContents 3 Editorial — Kseniya Garaschuk 4 MathemAttic: No. 11 4 Problems: MA51–MA55 8 Solutions: MA26–MA30 13 Teaching Problems: No. 8 — Richard Hoshino 18 Olympiad Corner: No. 379 18 Problems: OC461–OC465 20 Solutions: OC436–OC440 26 Focus On . . . : No. 39 — Michel Bataille 32 Problems: 4501–4510 36 Solutions: 4451–4460 Read the issue below Download this issue (PDF) Crux Mathematicorum