---
product_id: 288519776
title: "Libro Studio LLC Humble Math - 100 Days of Timed Tests: Addition and Subtraction: Ages 5-8, Math Drills, Digits 0-20, Reproducible Practice Problems"
price: "€ 33.60"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.at/products/288519776-libro-studio-llc-humble-math-100-days-of-timed-tests
store_origin: AT
region: Austria
---

# 6,200+ 4.8-star reviews 100 days of timed tests Addition & subtraction focus Libro Studio LLC Humble Math - 100 Days of Timed Tests: Addition and Subtraction: Ages 5-8, Math Drills, Digits 0-20, Reproducible Practice Problems

**Price:** € 33.60
**Availability:** ✅ In Stock

## Summary

> ⏳ Sharpen young minds with daily math sprints!

## Quick Answers

- **What is this?** Libro Studio LLC Humble Math - 100 Days of Timed Tests: Addition and Subtraction: Ages 5-8, Math Drills, Digits 0-20, Reproducible Practice Problems
- **How much does it cost?** € 33.60 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/288519776-libro-studio-llc-humble-math-100-days-of-timed-tests)

## Best For

- Customers looking for quality international products

## Why This Product

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

## Key Features

- • **Proven Popularity:** Over 6,200 rave reviews with a 4.8-star average—trusted by parents and educators
- • **Reproducible Practice:** Reusable worksheets mean endless practice without extra cost or waste
- • **Core Skills, Zero Fluff:** Focused practice on digits 0-20 ensures foundational math fluency
- • **Master Math Under Pressure:** 100 days of timed drills build speed and accuracy for ages 5-8
- • **Perfect for Early Learners:** Designed specifically for young minds to boost confidence and competence

## Overview

Libro Studio LLC Humble Math offers 100 days of timed addition and subtraction tests for children aged 5-8, focusing on digits 0-20. With reproducible practice problems and a strong track record of over 6,200 positive reviews, this workbook is a trusted tool to build foundational math skills efficiently and confidently.

## Description

Buy Libro Studio LLC Humble Math - 100 Days of Timed Tests: Addition and Subtraction: Ages 5-8, Math Drills, Digits 0-20, Reproducible Practice Problems by Math, Humble online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: Effective for practicing, progression of levels is well structured
Review: Great for math practice. Variety of questions and difficulty levels. Excellent to use over summer when school is out!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #41,500 in Books ( See Top 100 in Books ) #891 in Children's Books on Math #2,292 in Science, Nature & Math #3,478 in Activity Books for Children |
| Customer reviews | 4.8 4.8 out of 5 stars (6,219) |
| Dimensions  | 21.59 x 0.61 x 27.94 cm |
| Edition  | Illustrated |
| Grade level  | Kindergarten - 2 |
| ISBN-10  | 1635783003 |
| ISBN-13  | 978-1635783001 |
| Item weight  | 292 g |
| Language  | English |
| Print length  | 110 pages |
| Publication date  | 3 November 2019 |
| Publisher  | Libro Studio LLC |
| Reading age  | 5 - 8 years |

## Images

![Libro Studio LLC Humble Math - 100 Days of Timed Tests: Addition and Subtraction: Ages 5-8, Math Drills, Digits 0-20, Reproducible Practice Problems - Image 1](https://m.media-amazon.com/images/I/61zsyCx4y-L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by E***K on 26 September 2023*

Effective for practicing, progression of levels is well structured

### ⭐⭐⭐⭐⭐ Review
*by A***R on 22 September 2025*

Great for math practice. Variety of questions and difficulty levels. Excellent to use over summer when school is out!

### ⭐⭐⭐⭐ Review
*by S***M on 13 August 2025*

I didn't realise it would all be one digit sum rather than double digit.

## Frequently Bought Together

- Humble Math - 100 Days of Timed Tests: Addition and Subtraction: Grades K-2, Math Drills, Digits 0-20, Reproducible Practice Problems
- Humble Math - 100 Days of Timed Tests: Multiplication: Grades 3-5, Math Drills, Digits 0-12, Reproducible Practice Problems
- Humble Math - 100 Days of Timed Tests: Division: Grades 3-5, Math Drills, Digits 0-12, Reproducible Practice Problems

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-04-22*