1 = wahid
2 = ithnani
3 = thalatha
4 = arbaa
5 = khamsa
6 = sitta
7 = seb'a
8 = thamania
9 = tis'a
10 = ashara
11 = ihda-ashar
12 = ithna-ashar
13 = thalathata-ashar
14 = arbarata-ashar
15 = khamsata-ashar
16 = sitata-ashar
17 = seb'ata-ashar
18 = thamaniata-ashar
19 = tisata-ashar
20 = ishroune
and it'll go like this:
21 = wahid wa ishroune (wa = and)
22 = ithnani wa ishroune
....
30 = thalathoune
and the same way:
31 = wahid wa thalathoune
....
40 = arbaoune
50 = khamsoune
60 = sittoune
70 = seb'oune
80 = thamanoune
90 = tis'oune
100 = mi'a
and then:
101 = mi'a wa wahid
112 = mi'a wa ithna-ashar
145 = mi'a wa khamsa wa arbaoune