YOU SAID:

I ate six bowls of cereal today

INTO JAPANESE

今日はシリアルを６杯食べました

BACK INTO ENGLISH

I had six cereals today.

INTO JAPANESE

今日は穀物を６粒食べた。

BACK INTO ENGLISH

I ate six grains of grain today.

INTO JAPANESE

私は今日６粒の穀物を食べた。

BACK INTO ENGLISH

I ate six grains of grain today.