1) Pascal Triangle (relatively easy)

Each number is sum of the two numbers above it.(Since triangle is symmetric triangle so there are two solutions for each game)

2) Pascal Subtraction Triangle (similar to pascal triangle with minor difference)

(relatively difficult with more rows)

Each number is absolute differnce of the two numbers below it. (If triangle is symmetric triangle then there are two solutions for each game)

3) Pascal Addition Triangle (similar to pascal triangle with minor difference)

(relatively easy)

Each number is sum of the two numbers below it. (If traingle is symmetric triangle then there are two solutions for each game)

Numbers can be moved by tapping them. Numbers are swapped when you touch/tap two numbers. Size and number of rows can be increased/decreased by selecting size/rows options or by swiping two fingers horizontally or vertically.

Please try and provide your reviews.