calculets is a very simple math game designed for kids to practice initial arithmetic. Available on Android, this free app helps children practice math operations such as addition, subtraction, multiplication, and division.

The gameplay of calculets is straightforward. Upon starting, players can choose from three available levels. They are presented with six numbers inside bubbles in the central square and a "target number" at the bottom right of the screen. The goal is to reach the "target number" by combining the numbers inside the bubbles using the available mathematical operations.

To combine the bubbles, players can drag two bubbles, one after the other, to the box with the + symbol, which will automatically merge them into a new bubble with the sum of their numbers. The same process applies to subtraction, multiplication, and division, with the bubbles being dragged to the corresponding boxes.

One useful feature of calculets is the ability to undo an operation. By double-tapping a pink bubble, players can re-divide it into the two original bubbles.

Overall, calculets is a fun math game that offers an enjoyable way for kids to practice their math facts and improve their mental calculation skills.