About
This math app visually demonstrates subtraction using place value discs. It helps users understand regrouping and the base-ten system through interactive problems with 1-3 digits.
What's New in Place Value Subtraction
7.0
August 21, 2026
Updated for iOS 26 compatibility.
Developer apps
FAQ
What is Place Value Subtraction?
Place Value Subtraction is an educational app designed to help users understand subtraction concepts, particularly regrouping, by visually representing numbers with place value discs.
What age is Place Value Subtraction for?
Place Value Subtraction is suitable for children aged 4 and up, as indicated by its 4+ age rating.
How many digits can be used in Place Value Subtraction?
The app supports subtraction problems involving numbers with one, two, or three digits.
Can I create my own problems in Place Value Subtraction?
Yes, the app allows for the creation of custom problems in addition to generating random ones.
Does Place Value Subtraction have ads?
No, Place Value Subtraction is ad-free and does not contain any advertisements.
What devices does Place Value Subtraction support?
Place Value Subtraction is currently supported on iPads.
How often is Place Value Subtraction updated?
The latest version of Place Value Subtraction was released on October 10, 2021, indicating it receives periodic updates.
Is Place Value Subtraction part of a series?
Yes, Place Value Subtraction is one of four apps in the iDevBooks Place Value series, which also includes Addition, Multiplication, and Division.
