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Education

Column Subtraction

By Esa Helttula

Practice written subtraction with animated regrouping and aligned columns.

View on the App Store Official website
Our take

Useful for demonstrating the traditional algorithm

Manual or automatic renaming lets an adult vary the amount of support.

Keep in mind: It focuses on one computation method rather than all subtraction concepts.

What you can do

  • Custom/random problems
  • Animated regrouping
  • Adjustable hints and optional puzzles

Good for

  • Students learning column subtraction

Consider alternatives for

  • A complete mathematics course

Limitations & considerations

  • Captured minimum: iOS 17.6.
  • It focuses on one computation method rather than all subtraction concepts.

Privacy & permissions

Developer says no ads, purchases, transmitted data or web links during operation.

Sources & review notes Updated Nov 11, 2026

Reviewed by iApp4Me Editorial Team. Recommendations use the linked documentation and attributed accounts; device observations are identified separately.

  1. US App Store developer description

    Complete description, download price and compatibility metadata captured 2026-11-02.

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