My father taught me the numbers, how to count in Finnish. Yksi, kaksi, kolme, neljä, viisi, kuusi, seitsemän, kahdeksan, yhdeksan and kymmenen. My classmates in the secondary class found it sounds very funny. "Sadat" is if I remember correctly 100 and "tuhat" is 1000, but I'm not sure if it's written correctly. When you know this numbers you can count as foreigner very far. He explained me also how to count further. For the numbers 11 - 19 you only have to add "toista" to the numbers from one to ten. 11 = yksitoista, 12 = kaksitoista, 13 = kolmetoista and so on.
20 = 2x10 = kaksikymmenten, 21 = kaksikymmentenyksi and so on. The same system for the numbers from 100 to 1000 and 1000 to 10'000.
Then I learned from him 1 phrase "Minä puhun saksa" = "I speak German". A phrase that I could use as child when we visited in Finland relatives from my fathers side. From a Finn I met in Mallorca I learned another phrase: "Oli ruoka hyvää" = "the meal was good" if I remember correctly.
Additionally some words I know from my father: "näkemiin" = good bye, "kiitos" = "thanks", "hyvää päivää" = "good day", "huomenta" = "tomorrow"
Sorry if it there are mistakes in the orthography.