"Wanafunzi tisa"

Translation: Nine pupils

[FsqBrDe]

Would "wanafunzi watisa" also be acceptable?

[Theluji]

No, only the numbers 1, 2, 3, 4, 5 and 8 take agreements.

[FsqBrDe]

Asante! Hartelijk bedankt!

[aafrophone]

Is it because 6, 7 and 9 are of Arabic origin? Like how the adjectives of Arabic origin don't take agreements?