Grade 8 Math Practice App Review: 1,000 Problems, 11 Chapters, Step-by-Step Solutions
Grade 8 is the year Thai middle school math gets serious. The Pythagorean theorem, real numbers, polynomials and quadratic factoring all arrive in one school year, and many students who follow along in class still freeze when they face a real test question. The most reliable fix is regular Grade 8 math practice with worked solutions that show every step of the reasoning, not just the final answer.
In this review, ChatStick takes a closer look at “ตะลุยโจทย์คณิต ม.2” (Grade 8 Math Practice), a pocket math workbook with 1,000 problems covering all 11 chapters of the Thai Mathayom 2 curriculum. A friendly study buddy named Root guides students through a little practice every day, on iPhone and iPad.
Why daily practice matters in Grade 8 math
Math is learned by doing. Reading a summary tells you what a formula is; working through many different problems teaches you when and how to use it. With enough practice, students start to recognize question patterns, solve faster under time pressure and see clearly which mistakes they keep repeating.
Grade 8 topics are also the foundation for Grade 9 and upper secondary math. Exponents, polynomials and factoring come back again and again, so building solid habits now makes every later year easier.
Meet the app: ตะลุยโจทย์คณิต ม.2 by ChatStick
The app is built specifically for Thai Mathayom 2 (Grade 8) students. Every question follows the Thai Basic Education Core Curriculum B.E. 2551 (revised B.E. 2560) published by IPST. Each problem comes with a hint, a detailed step-by-step solution and a note on common mistakes, so students learn how to think through a problem instead of memorizing answers.
All 11 Grade 8 chapters in one app
Pythagorean theorem
Introduction to real numbers (roots, rational and irrational numbers)
Prisms and cylinders (surface area and volume)
Geometric transformations (translation, reflection, rotation)
Properties of exponents
Polynomials
Statistics (presenting and analyzing data)
Congruence
Parallel lines
Geometric reasoning
Factoring quadratic polynomials
Key features that build real math skills
1,000 quality problems: covering every topic and every difficulty level
Short lessons: each summary takes one to two minutes to read, with illustrations for every topic
Step-by-step solutions: with key formulas and common pitfalls
Daily goals and streaks: build a study habit without pressure
Mistake notebook: collect wrong answers and retry them until they stick
Chapter analysis: see strengths and weak spots per chapter
Smart Review: spaced-repetition review
Timed test modes: Quick, Mini, Chapter and Mock Test
Formula library: search formulas and save favorites
Gamification: earn XP, collect coins and unlock achievements
A simple study plan using the app
Based on the features above, here is a practical routine for Grade 8 students:
Read the short lesson for the chapter you are covering in class.
Work through easy and medium questions, and open the hint before checking the solution.
Read the step-by-step solution for every question, even the ones you got right, to confirm your method.
Once a week, open the mistake notebook and redo old errors until you answer them correctly.
Before midterms or finals, use Chapter or Mock Test mode with the timer to simulate exam conditions.
Tip: set a small daily goal you can actually hit and protect your streak. Short, steady practice beats one long cram session before the exam.
What is free and what Premium adds
Every lesson and summary is open for free, along with more than 700 easy and intermediate problems, supported by light ads that do not interrupt you while solving. Premium is a one-time purchase that you keep for good, and it unlocks:
All 1,000 problems, including challenge-level questions
Step-by-step solutions for every question
Smart Review, test modes and custom practice
Advanced weakness analysis and unlimited mistake review
No ads
Students can also watch an ad to get temporary Premium access for free, up to 3 times a day, 15 minutes each time.
App details at a glance
App name: ตะลุยโจทย์คณิต ม.2 (Grade 8 Math Practice)
Price: free download; in-app purchase “Unlock All Features” for ฿99
Compatibility: iPhone (iOS 18.0 or later), iPad (iPadOS 18.0 or later), Mac with Apple M1 chip or later (macOS 15.0 or later) and Apple Vision (visionOS 2.0 or later)
Size: about 24.6 MB
Category: Education, rated 4+
Developer: ChatStick Company Limited
Frequently asked questions
Who is this Grade 8 math app for?
Thai Mathayom 2 students who want to improve in math and prepare for class tests, midterms and finals, as well as parents who want their children to practice in a structured way.
Does it follow the Thai school curriculum?
Yes. Questions follow the Basic Education Core Curriculum B.E. 2551 (revised B.E. 2560) by IPST and cover all 11 Grade 8 chapters.
Can I use it for free?
Yes. The app is free to download, all lessons are open, and more than 700 easy and intermediate problems are free. The full 1,000 problems and an ad-free experience are unlocked with a one-time ฿99 purchase.
Does ChatStick have practice apps for other grades?
Yes. ChatStick publishes several practice apps, including Grade 9 math and Mathayom 1–3 practice sets. You can browse them on the ChatStick developer page on the App Store.
Conclusion
If you are looking for a complete way to practice Grade 8 math, with every chapter covered, step-by-step solutions and tools that target weak spots, ตะลุยโจทย์คณิต ม.2 by ChatStick works well for both daily study and exam preparation. Download it for free and start practicing with Root today.
See all ChatStick apps on the ChatStick developer page on the App Store.
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