カードをコレクションする計算パズルゲーム「プラステン」

To clear by solving the addition. New standard of calculation puzzle game appeared.
The rule is simple. Make 10 with the total of a number. Then a line goes off.
The ability of the calculation improves while playing. This app helps the training of your brain.

[How to play]
Answer a number that total will be "10" using the card of the hand. A line goes off.
When a line of a fixed number is goes off, a stage is raised up.
When there are no answered numbers in a hand, 2 cards are piled up and a number is made.
First digit of the number which totaled 2 cards will be a new card.
(In case of 7 + 5 = 12, a card of "2" can be made.)

[Level]
The level has 4 stages. Challenge the level which matches your pace.
・EASY Level
・NORMAL Level
・HARD Level
・EXPERT Level

[Cards Collection]
When you will clear nine stage by each level, you can have a new card.
A card makes the historic great person a motif. You can have 100 kinds of card altogether.
Collect great person cards of each level and please aim at completely.