"Missing Num Bubbles" Game

There are three different directions in this game. You can look for digits that precede your chosen option, then you can choose a level where you have to look for digits that follow your option, or look for values that are between two digits. When you have decided on the type of game and proceeded to the beginning, you will see an aquarium in which digits are floating and next to a flask with a task. In turn to each of these values you need to pick up a pair and go to the next level. Be very attentive and try not to miss the ball you choose. The higher your speed, the higher your level of attention, so have fun and learn at the same time.