Free printable hundreds chart detective

A free 2-page printable for grades 1-3. Page 1 is a full 1-100 hundreds chart with five lettered detective cells and five short number clues that decode a secret word. Page 2 is the teacher answer key plus an extra blank 1-100 chart (no letters) for warm-ups or 100th Day prep.

US Letter PDF. Black-and-white friendly. No email or sign-up needed. Free to print for classroom use. Original content only.

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Want a full 100th Day class period?

The Case of the Missing 100th Day Banner Classroom Edition ($4.99) is a 45-60 minute team escape room for grades 1-3: teacher guide, 7 number puzzles, station plan, hints, and answer key. Honest listing — no fake reviews or countdown timers.

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Also free: classroom team roles · pirate cipher · classroom freebies guide · Shop all kits.