About this app
Place Value Subtraction helps students understand subtraction using place value discs. A strong understanding of place value in the base ten system is essential for long-term mathematical learning. In subtraction, place value helps students understand how regrouping works. The app provides a visual, step-by-step way to subtract two numbers using place value discs. Students can solve randomly generated problems or enter their own problems. Features: * Numbers with 1–3 digits * Randomly generated problems * Custom problems * Visual place value discs * Step-by-step subtraction practice * Clear visualization of regrouping Part of the iDevBooks Place Value series: * Place Value Addition * Place Value Subtraction * Place Value Multiplication * Place Value Division Other iDevBooks Math Apps: Other iDevBooks math apps include Visual Fractions Decimals Percentages, Decimal Rounding, Whole Number Rounding, Column Subtraction, Column Addition, Long Division, Long Multiplication, Lattice Multiplication, Partial Differences Subtraction, Partial Quotients Division, Partial Sums Addition, and more. Feedback: New ideas to make this app better are welcome. Please visit idevbooks.com to give feedback. Privacy: This app has no ads, no in-app purchases, and does not transmit user data during operation. The app also does not contain links to other apps or to the web.
Latest release
What’s New
Updated for iOS 26 compatibility.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 23, 2026 · 11:13 PM $3.99
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