We found one dictionary that defines the word sub problems:

General (1 matching dictionary)

1. sub-problems: Wiktionary

▸ Words similar to sub problems ▸ Usage examples for sub problems ▸ Idioms related to sub problems ▸ Wikipedia articles (New!) ▸ Words that often appear near sub problems ▸ Rhymes of sub problems ▸ Invented words related to sub problems