getting random child from model gives error?

When I try to get a random tool aka child i get an error Players.Danglt.Backpack.Remote.Tool:14: attempt to index field 'random' (a function value)

local crate2 = storage.Crate:Clone()
    for i,v in pairs(storage.rewards:GetChildren()) do
        local reword = v[math.random[1]]:Clone()
        reword.Parent = crate2.Reward
    crate2.Parent = workspace
    crate2.Configurations.Owner.Value = plr.Name
    for i = 1,1 do -- Replace 100 with an increment of times
crate2.Base:SetPrimaryPartCFrame(char.Torso.CFrame + Vector3.new(10,10,0))
end