Math Dragon Play Show app for iPhone and iPad

This is a math formula combination game. A list of 9 grids will appear in the middle of the screen. There are numbers and math symbols in the list. You need to customize a formula based on these numbers and results. You win if the result of the formula equals the target number.
Rules: You need to choose a number as the first object, followed by a symbol, and then a number. You can choose a two-digit formula (1+2) and a three-digit formula (3+2*6) based on the result.
If you dont choose according to the rules, you will get an error.
I hope you can learn more math knowledge while playing.