Proof of my son’s practice

He got blisters on his hands because he played ‘Taiko-no-tatsujin’ too much.
And I wonder how many 100 yen coins I throwed into this game.

息子くん（３歳）、太鼓の達人のやりすぎて、手に豆ができる。
そして、俺はいったいどれだけの１００円玉を投下してきたのだろう・・・？

校閲の内容

throwed into

→ I throwed into