Discounts in math · Smart Shopping Lab

Explore percentage discounts with price tags, savings trays, comparison scales, and animated receipts.

Interactive mathematics

Highlighted caption & live values

Original price

Discount rate

Status

Current change

Equation

Visual step

Learn by exploring

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A discount is a reduction from an original price. The customer pays the original price minus the saving.

1 Read price2 Model percent3 Calculate saving4 Find final price

Equal jumps, equal groups, and multiplication all generate the same multiples.

Experiment

Original price

Discount percent

Tax percent

Predict final price

Show the current equation on canvas

Simulation speed1×

Zoom100%

Multiple / LCM history

Each change adds a point. Tracking a group highlights its contribution.