1613. How many of each of these are there? Why does that matter? 切 室 基 球 折

Answer:

They all have to do with counting.

切  SETSU, ki(ru), ki(reru) - cut

室  SHITSU, muro - room

基  KI, moto, motoi - basis, foundation

球  KYUU, tama - ball, sphere

折  SETSU, o(ru), o(reru), ori - break, fold, yield, bend, occasion