Dr.Sum description

Number puzzle from Dr. Sum's new idea!
Basic rules are simple.
Using math addition, re-arrange the panels to the correct orders.
Various gimmick panels on the way!
Work out the sums makes your brain clear.
AND
Who is the smartest?

[Normal Level]
Clear all the 50 levels.

[Time Attack Level]
Let's challenge the puzzles within the target time.

[Endless Level]
This is a level with no end.