---
product_id: 43588015
title: "The Lost Key: A Mystery with Whole Numbers (Manga Math Mysteries)"
price: "B/.22"
currency: PAB
in_stock: true
url: https://www.desertcart.com.pa/products/43588015-the-lost-key-a-mystery-with-whole-numbers-manga-math
store_origin: PA
region: Panama
---

# The Lost Key: A Mystery with Whole Numbers (Manga Math Mysteries)

**Price:** B/.22
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** The Lost Key: A Mystery with Whole Numbers (Manga Math Mysteries)
- **How much does it cost?** B/.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/43588015-the-lost-key-a-mystery-with-whole-numbers-manga-math)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

desertcart.com: The Lost Key: A Mystery with Whole Numbers (Manga Math Mysteries): 9780761352440: Thielbar, Melinda, Pantoja, Maria Kristina Sb.: Books

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #1,874,489 in Books ( See Top 100 in Books ) #501 in Children's Math Fiction #924 in Children's Manga (Books) #9,879 in Children's Mystery, Detective, & Spy |
| Customer Reviews | 5.0 5.0 out of 5 stars (6) |
| Dimensions  | 6 x 0.13 x 8.75 inches |
| Grade level  | 3 - 5 |
| ISBN-10  | 0761352449 |
| ISBN-13  | 978-0761352440 |
| Item Weight  | 3.99 ounces |
| Language  | English |
| Print length  | 48 pages |
| Publication date  | August 1, 2010 |
| Publisher  | Graphic Universe ™ |
| Reading age  | 8 - 11 years |

## Images

![The Lost Key: A Mystery with Whole Numbers (Manga Math Mysteries) - Image 1](https://m.media-amazon.com/images/I/81DiioHU7ZL.jpg)

---

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---

*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-11-07*