■ □ ■ Hundred Masu Calculation x Living Things
It is a completely free app that allows you to grow cute waterside creatures, Japanese fire belly newts, from eggs using the coins earned in the 100-mass calculation.

Live foods that can be purchased at the shop are familiar waterside creatures such as paramecium, euglena, volvox, daphnia, chironomid, and tadpole.
If you purchase it, you can put up to 6 animals in the aquarium.
You can tap the live food to feed the newt, or you can observe it floating in the water.


■ □ ■ Hundred-mass calculation has three calculation methods of addition, subtraction, and multiplication, and the number of questions you can choose. You can easily challenge the calculation problem in your spare time with 10, 30, 50, and 100 questions.


■ □ ■ The time record for the 100-mass calculation is the past 50 times.
The records for 50 times are displayed in a graph in an easy-to-understand manner.
Your personal best time and average time are also displayed.

■ □ ■ The basis of 100-mass calculation is to keep a record every day.
Improve your computing power while having fun nurturing.

■ □ ■ After the ending, you can reset the newt to an egg with the coin and time record as it is by clicking the "Reset Newt" button on the setting screen.