脳トレ マッチ棒計算パズル

Train your brain with a classic puzzle game, matchstick puzzle.
The rules are simple. Remove the matchstick, add it, or move it to correct the math formula.
The difficulty level can be selected from “Beginner”, “Intermediate” and “Advanced”.
Is it difficult? unconfident? It's okay. If you get stuck, you can see the answer. You can also start over.
Please try it!