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Math Mysteries: The Triplet Threat (Math Mysteries, 1)

$6.29
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About this item

Math Mysteries: The Triplet Threat―where solving crimes means solving equations! It's the first day of 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! This page-turning mystery by author Aaron Starmer brims with lighthearted intrigue and essential middle-grade math skills that will have readers on the edge of their seats. Perfect for kids who love puzzles, riddles, brain teasers, and adventure stories! Each book in this gripping series contains multiple, interlinked mysteries that readers help solve using math. Includes answers showing step-by-step solutions―ideal for grades 4–8. Also from the MATH MYSTERIES series: The Fall Festival Fiasco
ASIN: 1250839289
VSKU: DBV.1250839289.A
Condition: Acceptable
Author/Artist:Starmer, Aaron|Kissi, Marta
Binding: Paperback
Note: Any images shown are stock photographs and product may differ from what is shown.
Condition Notes: This copy has clearly been enjoyed—expect noticeable shelf wear and some minor creases to the cover. Binding is strong, and all pages are legible. May contain previous library markings or stamps.
Note on Condition

Most of the items in our store are used. The item's condition grade is indicated near the bottom of the product description. If you have any questions regarding specific details of an item, please contact us. We use the following rating scale:

Books:

  • Used - Very Good: Item may have minor cosmetic defects (marks, wears, cuts, bends, crushes) on the cover, spine, pages or dust cover. Shrink wrap, dust covers, or boxed set case may be missing. Item may contain remainder marks on outside edges, which should be noted in listing comments. Item may be missing bundled media. 
  • Used - Good: All pages and cover are intact (including the dust cover, if applicable). Spine may show signs of wear. Pages may include limited notes and highlighting. Gently used ex-library books with library stickers and markings may be classified as good. Shrink wrap, dust covers, or boxed set case may be missing. Item may be missing bundled media. 
  • Used - Acceptable: All pages and the cover are intact, but shrink wrap, dust covers, or boxed set case may be missing. Pages may include limited notes, highlighting, or minor water damage but the text is readable. Item may but the dust cover may be missing. Pages may include limited notes and highlighting, but the text cannot be obscured or unreadable.

CDs/DVDs/Discs:

  • Used - Good: Case may be damaged or come repackaged. Disc may have up to 1.5cm marking but is in great working condition. 
  • Used - Acceptable: A product with extensive external signs of wear, but is in great working condition. The case may be damaged. The cover art, liner, notes, or other inclusion may be marked, or one or all of these items may be missing.
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