The Triplet Threat

By Aaron Starmer, Marta Kissi (Illustrator)

Part of the Math Mysteries series

Unravel school mysteries with math as strange events unfold at Arthimos Elementary.

3.9/5 Goodreads · 27 ratings

192 pages

$8.99Save 5%

In stock. Also at Amazon or Bookshop.

Bookroo's summary

At Arthimos Elementary, the first day of fourth grade spirals into chaos with poisonous cookies, a zipline mishap, and a missing iPad. The Prime Detectives—Abby, Cam, and Gabe—must use math to solve these puzzling mysteries. Can they uncover the truth behind the custodian's odd wheelbarrow sounds and the new triplets in town? Dive into a world where arithmetic and logic are the keys to cracking the case.

From the publisher

A page-turning mystery brimming with lighthearted intrigue and essential middle-grade math skills, Math Mysteries: The Triplet Threat by author Aaron Starmer will have readers on the edge of their seats as they unravel the who-done it using math. Perfect for both mystery and math lovers, as well as kids who love puzzles, riddles, brainteasers, and adventure stories! It’s the first day of the fourth grade at Arthimos Elementary and things are already off to a strange start–poisonous cookies, a zipline disaster, a missing iPad, and what are those strange sounds coming from the school custodian’s wheelbarrow? Luckily the Prime Detectives–Abby “the Abacus” Feldstein, Cameron “Cam” McGill, and Gabriel “Gabe” Kim–are on the case! Using arithmetic, geometry, and logic, the Prime Detectives are sure to figure out who did what, when, and why! A gripping new middle grade mystery series, each book contains multiple, interlinked mysteries that readers help solve using math. Includes answers showing step-by-step solutions.

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