---
product_id: 120519245
title: "Humble Math - 100 Days of Timed Tests: Addition and Subtraction: Grades K-2, Math Drills, Digits 0-20, Reproducible Practice Problems"
price: "€ 22.40"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.es/products/120519245-humble-math-100-days-of-timed-tests-addition-and-subtraction
store_origin: ES
region: Spain
---

# Humble Math - 100 Days of Timed Tests: Addition and Subtraction: Grades K-2, Math Drills, Digits 0-20, Reproducible Practice Problems

**Price:** € 22.40
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Humble Math - 100 Days of Timed Tests: Addition and Subtraction: Grades K-2, Math Drills, Digits 0-20, Reproducible Practice Problems
- **How much does it cost?** € 22.40 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/120519245-humble-math-100-days-of-timed-tests-addition-and-subtraction)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
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## Description

Buy Humble Math - 100 Days of Timed Tests: Addition and Subtraction: Grades K-2, Math Drills, Digits 0-20, Reproducible Practice Problems on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Fantastic math series! - review after 4 years - My son started this math book series 4 years ago, a few months after he turned 5, when he was in kindergarten. He began with this book (Addition & Subtraction) and has been working through the series ever since, about 1-2 pages a day. Now, at age 9, he’s completed 9 books in the series, including topics like fractions, long division, and area and volume. He quickly passed his grade level in math and just kept going! I truly believe these books helped him get into the gifted class. His classmates even call him a “math genius,” and he’s so proud of himself. Now he started learning algebra, while reviewing other topics he has completed. This book doesn’t have much explanation on how to solve each problem, so I do need to teach him sometimes - but he rarely struggles. I think it’s very well designed for introducing new concepts to young kids in a simple and natural way. What I love most is how this daily habit has boosted his confidence and attitude toward learning. Spending just 10-20 minutes a day taught him that small efforts can make a big difference. I highly recommend this series - just encourage your child to do one page a day. It’s a simple routine that brings lasting results, both academically and personally!
Review: Smart book for smart brains - 100 Days of Timed Tests: Addition & Subtraction is an excellent workbook for helping children build math confidence and speed. The daily timed exercises make practice simple and consistent, while reinforcing essential addition and subtraction skills. It’s well-structured, easy to follow, and ideal for extra practice at home or as a supplement to classroom learning.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #1,720 in Books ( See Top 100 in Books ) #2 in Popular & Elementary Arithmetic (Books) #11 in Children's Arithmetic Books #15 in Education Workbooks (Books) |
| Customer Reviews | 4.8 out of 5 stars 6,349 Reviews |

## Images

![Humble Math - 100 Days of Timed Tests: Addition and Subtraction: Grades K-2, Math Drills, Digits 0-20, Reproducible Practice Problems - Image 1](https://m.media-amazon.com/images/I/61zsyCx4y-L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fantastic math series! - review after 4 years
*by B***Y on November 7, 2025*

My son started this math book series 4 years ago, a few months after he turned 5, when he was in kindergarten. He began with this book (Addition & Subtraction) and has been working through the series ever since, about 1-2 pages a day. Now, at age 9, he’s completed 9 books in the series, including topics like fractions, long division, and area and volume. He quickly passed his grade level in math and just kept going! I truly believe these books helped him get into the gifted class. His classmates even call him a “math genius,” and he’s so proud of himself. Now he started learning algebra, while reviewing other topics he has completed. This book doesn’t have much explanation on how to solve each problem, so I do need to teach him sometimes - but he rarely struggles. I think it’s very well designed for introducing new concepts to young kids in a simple and natural way. What I love most is how this daily habit has boosted his confidence and attitude toward learning. Spending just 10-20 minutes a day taught him that small efforts can make a big difference. I highly recommend this series - just encourage your child to do one page a day. It’s a simple routine that brings lasting results, both academically and personally!

### ⭐⭐⭐⭐⭐ Smart book for smart brains
*by J***E on January 17, 2026*

100 Days of Timed Tests: Addition & Subtraction is an excellent workbook for helping children build math confidence and speed. The daily timed exercises make practice simple and consistent, while reinforcing essential addition and subtraction skills. It’s well-structured, easy to follow, and ideal for extra practice at home or as a supplement to classroom learning.

### ⭐⭐⭐⭐⭐ Great staple for homeschoolers!
*by S***E on December 1, 2025*

These are great for homeschool kiddos that want a little extra practice on math memorization! They're printed well and the answers are in the back for easy and quick checking by parents. I like that they have a spot to record your time and score each day so you can see how your child progresses from day to day.

## 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 Spain*
*Store origin: ES*
*Last updated: 2026-03-11*