[Verginius Rufus]

One remarkable feature of the Tocharian languages is that they are centum languages. Linguists divide the Indo-European languages into centum and satem languages (after the Latin and Avestan words for 100)--there is a regular pattern where the K-sound appears in one group and a sibilant in the other. English is a centum language (but the K became an H--as in "hundred" or "hound" [Latin canis, Greek kyn-]).

The other Indo-European languages in the East are all satem languages, including the Indian & Iranian languages, and also the Slavic language family.

Tocharian B for "8" is okt (cf. Latin octo, Czech osm) and for "100" is kante.

[CarrotAndStick]

I wouldn’t trust that “centum” / “satem” theory too much. Primarily because numeral systems are easily exchanged via trade, in contrast to language itself. In several Indian languages, 100 is pronounced “shaw-nth” or “scha-uwth”, and the number 8 is “aahtt”.