Adder

Add numbers a1-a9 to each other and get points for it, but do not forget that the amount should not be more than the control number N.

You can unlock achievements:
1. Baby: Score 200 points
2. Wiseacre: Score 400 points
3. Mathematician: Get x20 combo
4. Runner: Over 300 10 times in a row
5. Gamer: Play this game 100 times
6. Genius: Over 500 points 5 times in a row
7. King of tens: Make 10 tens in one game
8. Lucky luck: Score 600 points
9. Like a pro: Over 600 points 3 times in a row
10. GODLIKE: Score 1000 points