Number Decomposition – Math
Zahlzerlegung – Mathe lernen
Not in any tracked top chart right now.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperLernwunder
CategoryEducation
Price3.99 EUR
Released
Rating★ 5.0 (4)
Version1.3
Age rating4+
First seen by us
25 Sep 2026
Rating
5.0 ★
4 ratings
Measured
Number Decomposition – Math on the App Store
App details
App ID
6752735119
Publisher
Chaolan Lu
Minimum OS
iOS 17.0+
Content rating
4+
Languages
14
AR EN FR DE HI IT JA KO PT RU ZH ES …
Size
82 MB
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
5.0 ★
4 ratings
Measured
Ratings
4
Measured
About Number Decomposition – Math
LEARN MATH – WITHOUT COUNTING
Many children learn arithmetic by counting. That is tedious and often the start of later difficulties with math. This app begins exactly where true understanding develops after quantity–number correspondence: with the automation of number bonds up to 10.
Children learn how numbers are structured and can solve addition and subtraction tasks safely, quickly, and from memory. No counting, no frustration, with visible success.
HOW IT WORKS
• Example: 8 = ? and 3
• One part is given, the other is added via drag & drop
• Correct? → reward and progress
• Wrong? → gentle feedback and repeat
• Only fast, correct answers (under 5 seconds) count as “known by heart”
MADE FOR CHILDREN – EVEN WITHOUT READING
• Intuitive operation with number tiles and structured quantity images (dice, fingers, dots, and more)
• Four child-friendly animal avatars: panda, dolphin, cat, dog
• Each correct task colors the avatar more
• Learning progress is always visible and motivating
FOCUSED LEARNING INSTEAD OF A GAME APP
• Reduced sounds and calm, clear visuals
• No distracting effects, no flashy colors
• Clear didactic structure: not a game, but a real teaching and learning app
PEDAGOGICALLY SOUND – RESEARCH-BASED
• Leitner learning system with spaced repetition (boxes 1–4)
• Didactic reduction: only meaningful decompositions, no swapped pairs, no zero
• Structured quantity images strengthen number sense and understanding
• Error-oriented learning: incorrect tasks are deliberately repeated
• Progress per avatar is transparent – also for parents and teachers
SAFE AND AD-FREE
• No ads
• No in-app purchases
• Works offline – ideal for on the go
• One-time purchase, permanent use
DOWNLOAD NOW – MAKE MATH SIMPLE
With this app, your child becomes a master of number bonds: playful, visually structured, and sustainable. Ideal for preschool, first grade, or home practice – without distractions and with full focus on what matters.
Many children learn arithmetic by counting. That is tedious and often the start of later difficulties with math. This app begins exactly where true understanding develops after quantity–number correspondence: with the automation of number bonds up to 10.
Children learn how numbers are structured and can solve addition and subtraction tasks safely, quickly, and from memory. No counting, no frustration, with visible success.
HOW IT WORKS
• Example: 8 = ? and 3
• One part is given, the other is added via drag & drop
• Correct? → reward and progress
• Wrong? → gentle feedback and repeat
• Only fast, correct answers (under 5 seconds) count as “known by heart”
MADE FOR CHILDREN – EVEN WITHOUT READING
• Intuitive operation with number tiles and structured quantity images (dice, fingers, dots, and more)
• Four child-friendly animal avatars: panda, dolphin, cat, dog
• Each correct task colors the avatar more
• Learning progress is always visible and motivating
FOCUSED LEARNING INSTEAD OF A GAME APP
• Reduced sounds and calm, clear visuals
• No distracting effects, no flashy colors
• Clear didactic structure: not a game, but a real teaching and learning app
PEDAGOGICALLY SOUND – RESEARCH-BASED
• Leitner learning system with spaced repetition (boxes 1–4)
• Didactic reduction: only meaningful decompositions, no swapped pairs, no zero
• Structured quantity images strengthen number sense and understanding
• Error-oriented learning: incorrect tasks are deliberately repeated
• Progress per avatar is transparent – also for parents and teachers
SAFE AND AD-FREE
• No ads
• No in-app purchases
• Works offline – ideal for on the go
• One-time purchase, permanent use
DOWNLOAD NOW – MAKE MATH SIMPLE
With this app, your child becomes a master of number bonds: playful, visually structured, and sustainable. Ideal for preschool, first grade, or home practice – without distractions and with full focus on what matters.
Latest updates
1.3
This version fixes issues in the learning system and makes progress more visible.
LEARNING SYSTEM
• A correct but slow answer used to count as a mistake and reset the task's progress. Now the task simply stays at its current level.
• Towards the end, the last two tasks could alternate endlessly without moving on. This is fixed.
• Now included: the doubles 2+2, 3+3 and 4+4. Existing progress is preserved.
THE DECOMPOSITION IS NOW SHOWN
• After a mistake, the quantity visibly splits into its two parts. Children see not only what is correct, but how the number is made up.
• Occasionally the decompositions of one number come one after another, making the pattern noticeable.
PROGRESS FOR PARENTS AND TEACHERS
• Tapping the animal in the settings shows every decomposition with its learning level, so you can see which single task is still shaky.
• The tangram animal now gains colour step by step instead of staying grey until a number is fully mastered.
• New progress ring for each animal.
• A short introduction for parents and teachers on first launch, available again at any time from the settings.
EASIER TO READ
• Noticeably clearer colours, especially in the pink colour scheme.
• The star visibly moves up to the next learning level.
• The app now speaks 14 languages.
Progress is saved after every answer.