keskiarvo

kakkonen

two (the digit 2; also second place, or a bus/route number 2)

tuhatkertainen

thousandfold

kymmenys

tenth part, one tenth

numeroida

to number (to give numbers to items in order)

neljännes

quarter (one fourth)

vuosiluku

year (as a number, e.g. 1917)

kertolasku

multiplication (multiplying numbers)

jakaa

to divide