Number Jumper

The Number Jumper is a treasure in. It is actually a calculator.

Collecting the treasure
The Number Jumper is resting on a large armchair near the center of the southern half of the Hero's Hideaway. To collect this treasure, you must use the fan on the nearby table to land on the couch, jump on the moving platform as it passes by, and throw 12 Pikmin at it once you are within range.