Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
ろく (num) sixjlpt5
一ヶ月 いっかげつ one monthtoki
~か月 ~かげつ month(s) (time interval)jlpt5, toki
四十 よんじゅう 40math
四つ よっつ fourjlpt5