Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
いち onejlpt5
よん fourjlpt5
ひゃく (num) 100, hundredjlpt5
十億 じゅうおく 1,000,000,000, billion (American), (obs) milliard (British)mix
一兆 いっちょう 1,000,000,000,000, one trillion, one billion (obs. British)mix