JS decimal turn to integer Floor: down math.floor (12.9999) = 12 CEIL: upper math.ceil (12.1) = 13; Round: Four houses and five enter math.round (12.5) = 13 math.round (12.4) = 12) = 12. 12.4) = 12 = 12) = 12.4 = 12) = 12.4 = 12) = 12.4 = 12).
