Paper Boat - Arithmetic Four

Paper Boat( old name: Rainbow's Choice ) is an arithmetics exercise game made for kids age over 6.
Connect the correct answers by rainbow allow children practise their four basic arithmetics skills.Earning shells to redeem gifts in their real life could motivate their willing to practice.


My own daughter Mina (6 yr) can focus on the game over 30 mins everyday.
She has master the plus and minus under 20 now.

Functions:
-Customizable round number (5~10)
-Adjustable error rate
-Adjustable Exp to suit children's patient(full unlocked version)
-Adjustable question number to fit children's level (free version:5~10)
-Pick one or more from four Operators (free version: + only)
-Customizable gift list (full unlocked version)
-Password proctection for option menu
-Complete game active log