Twelve Numbers

simple maths game
endless, progressive, only 12 number choices

**As Requested added hinting*******

Some maths looks impossible, but can you solve the maths while the others cannot.
It looks impossible and only one combination, but the true is there are at least several answers for each number

How to play:
-Combine from within 12 numbers to make sum equal to Hot air balloon flying across left to right.
-Save as much balloon per stage, total balloon saved will carry to the next stage and so on.

Advance ways:
-Combine more numbers at once will make numbers shorter disabled time.
-Sum up with green numbers only give you higher points than mix with yellow