How do I randomize functions?

I am trying to call the functions randomly. But I do not know where to start. Any tips on how to begin? I have tried using math.random but no success.

local paper = game.ReplicatedStorage.Spawnables.Paper
local folder = game.ReplicatedStorage.Spawnables

-- paper spawnings
    function paperSpawn()
    local spawnPaper = paper:Clone()
    spawnPaper.Parent = workspace
    local xpos = math.random(-100, 100)
    local ypos = 0.5
    local zpos = math.random(-100, 100)
    spawnPaper.Position = Vector3.new(xpos, ypos, zpos)
    end
    function voidSpawn()
    local spawnPaper = folder.VoidPaper:Clone()
    spawnPaper.Parent = workspace
    local xpos = math.random(-100, 100)
    local ypos = 0.5
    local zpos = math.random(-100, 100)
    spawnPaper.Position = Vector3.new(xpos, ypos, zpos)
    end
    function redPaper()
    local spawnPaper = folder.RedPaper:Clone()
    spawnPaper.Parent = workspace
    local xpos = math.random(-100, 100)
    local ypos = 0.5
    local zpos = math.random(-100, 100)
    spawnPaper.Position = Vector3.new(xpos, ypos, zpos)
    end
    function LightPaper()
    local spawnPaper = folder.LightPaper:Clone()
    spawnPaper.Parent = workspace
    local xpos = math.random(-100, 100)
    local ypos = 0.5
    local zpos = math.random(-100, 100)
    spawnPaper.Position = Vector3.new(xpos, ypos, zpos)
    end
    function GoldPaper()
    local spawnPaper = folder.GoldPaper:Clone()
    spawnPaper.Parent = workspace
    local xpos = math.random(-100, 100)
    local ypos = 0.5
    local zpos = math.random(-100, 100)
    spawnPaper.Position = Vector3.new(xpos, ypos, zpos)
    end
    function DiamondPaper()
    local spawnPaper = folder.DiamondPaper:Clone()
    spawnPaper.Parent = workspace
    local xpos = math.random(-100, 100)
    local ypos = 0.5
    local zpos = math.random(-100, 100)
    spawnPaper.Position = Vector3.new(xpos, ypos, zpos)
    end
    function EmeraldPaper()
    local spawnPaper = folder.EmeraldPaper:Clone()
    spawnPaper.Parent = workspace
    local xpos = math.random(-100, 100)
    local ypos = 0.5
    local zpos = math.random(-100, 100)
    spawnPaper.Position = Vector3.new(xpos, ypos, zpos)
    end
    function PurplePaper()
    local spawnPaper = folder.PurplePaper:Clone()
    spawnPaper.Parent = workspace
    local xpos = math.random(-100, 100)
    local ypos = 0.5
    local zpos = math.random(-100, 100)
    spawnPaper.Position = Vector3.new(xpos, ypos, zpos)
    end
-- randomizer