Numa began playing as a child in the
Beersheba municipal leagues and rose through the ranks to the Hapoel first squad when he was 17. For most of his career he played as a
striker and sometimes played other positions such as
right midfielder. In the 1966–68 season, Numa's team, Hapoel Be'er Sheva, prevailed twice over the
Maccabi Tel Aviv team that did win the championship. In the second game, the away game, Numa opened the scoring; it was held in front of 6000 spectators at the
Maccabiah Stadium in Tel Aviv and ended with a score of 0-3. At the end of this season, the longest season in the history of the prime league, he won the title of
Israeli Footballer of the Year. A year later, although a weakened Hapoel Be'er Sheva finished in the 14th place, one place above relegation to the
Liga Artzit, Numa finished in fourth place for footballer of the year in Israel. During the 1970s, Numa finished several seasons as the top scorer of Hapoel Beer Sheva. At the end of the 1972–73 season, he scored three goals in the last home game of this season, against the
Maccabi Haifa, helping his team win 2–4. He was a partner in the two championships that Hapoel Beer Sheva won in 1975 and 1976. After the two championships, for the entire season of 1976–77, Numa was absent due to a serious injury and his team finished 13th, one place above relegation to the Liga Artzit. During the 1978–79 season, he changed sides to
Beitar Be'er Sheva in the Liga Artzit, where he ended his player career in 1980. == Managerial career ==