Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
十億 じゅうおく 1,000,000,000, billion (American), (obs) milliard (British)mix
せん 1,000, thousandjlpt5
六つ むっつ sixjlpt5
一つ ひとつ onejlpt5
なな 7jlpt5
おく (num) 100,000,000, hundred millionjlpt4
百万 ひゃくまん (1)1,000,000, one million, million, (2)many mix
さん (num) threejlpt5, mix
百京 ひゃくきょう kvadrilionmix
三つ みっつ threejlpt5