Subtraction Modes in Math Cards
Subtraction Facts
Single-digit subtraction (e.g., 15 - 8). Choose a specific subtrahend or mix them all. Fast, automatic recall is the goal.
Long Subtraction
Two-digit column subtraction (e.g., 73 - 48). The scratch pad shows tens and ones columns for working through borrowing step by step.
Why One Wrong Answer Ends the Game
In Math Cards, a single incorrect answer ends the run and saves the high score. This design is intentional — it mirrors the real consequence of arithmetic errors in longer calculations and builds the habit of thinking before answering.
Children quickly learn to slow down, double-check, and commit to an answer rather than guessing and hoping for another chance.
Building from Facts to Column Subtraction
The natural progression in Math Cards is:
- Master Subtraction Facts first (automatic recall without counting)
- Move to Long Subtraction for two-digit problems using the column method
- Use the scratch pad to practice regrouping (borrowing) step by step
Both modes share the same daily practice count, so 20 free problems can be split between fact review and column practice.
Practice Subtraction Today
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