Answer:
一 -> 二 -> コ -> 口 -> 日 -> 旧 -> 田 -> 甲 -> 里 -> 量 -> 糧
一 ICHI, ITSU, hito(tsu) - one
二 NI, futa(tsu), futa - two
コ Katakana "Ko"
口 KOU, kuchi - mouth
日 NICHI, JITSU, hi, ka - sun, day
旧 KYUU, KU - old, former
田 DEN, ta - paddy field
甲 KOU, KAN - first in a series, high voice
里 RI, sato - village
量 RYOU, haka(ru) - quantity, measure, weigh
糧 RYOU, ROU, kate - food, provisions