Heads to the beach and looks at number lines. Explains the financial elements that occur when buying an ice cream-adding, subtracting, multiplying, and dividing decimal numbers. Checks out a surf clothing shop to examine percentages. Finishes up with rounding off decimal numbers and estimating. Accessibility options on the DVD are: (1) expanded description, (2) English subtitles in a black box, (3) subtitled description. Part of the "Mathemania" series.