"Expected identifier, got function." What!? Help! [SOLVED]

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caculations = {n1 = "", operation = "", n2 = ""}


--Buttons
B0 = script.Parent.Buttons.B0.ClickDetector
B1 = script.Parent.Buttons.B1.ClickDetector
B2 = script.Parent.Buttons.B2.ClickDetector
B3 = script.Parent.Buttons.B3.ClickDetector
B4 = script.Parent.Buttons.B4.ClickDetector
B5 = script.Parent.Buttons.B5.ClickDetector
B6 = script.Parent.Buttons.B6.ClickDetector
B7 = script.Parent.Buttons.B7.ClickDetector
B8 = script.Parent.Buttons.B8.ClickDetector
B9 = script.Parent.Buttons.B9.ClickDetector
Bdivide = script.Parent.Buttons.Operations.Bdivide.ClickDetector
Bplus = script.Parent.Buttons.Operations.Bplus.ClickDetector
Bequals = script.Parent.Buttons.Operations.Bequals.ClickDetector
Btimes = script.Parent.Buttons.Operations.Btimes.ClickDetector
Bminus = script.Parent.Buttons.Operations.Bdivide.ClickDetector

product = 0

operationpresent = false

chosenOperationID = 0

MAX_DIGITS = 12

-- ID's
minus = 1
plus = 3
times = 4
divide = 5


-- Tables, Varibles And Set Up ^

-- OPERATIONS: - + / * =

-- Player Picks Operation And Two Numbers

function N0()
	if operationpresent == false then
	caculations.n1 = caculations.n1.."0"
	print(caculations.n1.." Number 1")
	else
	caculations.n2 = caculations.n2.."0"
	print(caculations.n1.." Number 2")
end		
end

function N1()
		if operationpresent == false then
	caculations.n1 = caculations.n1.."1"
	print(caculations.n1.." Number 1")
	else
	caculations.n2 = caculations.n2.."1"
	print(caculations.n1.." Number 2")
	end
end

function N2()
		if operationpresent == false then
	caculations.n1 = caculations.n1.."2"
	print(caculations.n1.." Number 1")
	else
	caculations.n2 = caculations.n2.."2"
	print(caculations.n1.." Number 2")
	end
end

function N3()
		if operationpresent == false then
	caculations.n1 = caculations.n1.."3"
	print(caculations.n1.." Number 1")
	else
	caculations.n2 = caculations.n2.."3"
	print(caculations.n1.." Number 2")
	end
end

function N4()
		if operationpresent == false then
	caculations.n1 = caculations.n1.."4"
	print(caculations.n1.." Number 1")
	else
	caculations.n2 = caculations.n2.."4"
	print(caculations.n1.." Number 2")
	end
end

function N5()
		if operationpresent == false then
	caculations.n1 = caculations.n1.."5"
	print(caculations.n1.." Number 1")
	else
	caculations.n2 = caculations.n2.."5"
	print(caculations.n1.." Number 2")
	end
end

function N6()
		if operationpresent == false then
	caculations.n1 = caculations.n1.."6"
	print(caculations.n1.." Number 1")
	else
	caculations.n2 = caculations.n2.."6"
	print(caculations.n1.." Number 2")
	end
end

function N7()
		if operationpresent == false then
	caculations.n1 = caculations.n1.."7"
	print(caculations.n1.." Number 1")
	else
	caculations.n2 = caculations.n2.."7"
	print(caculations.n1.." Number 2")
	end
end

function N8()
		if operationpresent == false then
	caculations.n1 = caculations.n1.."8"
	print(caculations.n1.." Number 1")
	else
	caculations.n2 = caculations.n2.."8"
	print(caculations.n1.." Number 2")
	end
end

function N9()
		if operationpresent == false then
	caculations.n1 = caculations.n1.."9"
	print(caculations.n1.." Number 1")
	else
	caculations.n2 = caculations.n2.."9"
	print(caculations.n1.." Number 2")
	end
end

function equals()
	caculate()
	print(product)
	caculations.n1 = ""
	caculations.n2 = ""
	caculations.operation = "0"
	product = "0"
end

function


-- Caculation
function caculate()
	if caculations.n1 == "0" and caculations.n2 == "0" and caculations.operation == "/" then
		warn("Bad Caculation. 0/0 Is Not Possible.")
	else
if caculations.operation == "-" then
product = caculations.n1 - caculations.n2
print("Da Answer Is "..product)
else
if caculations.operation == "+" then
product = caculations.n1 + caculations.n2
print("Da Answer Is "..product)
else
if caculations.operation == "*" then
product = caculations.n1 * caculations.n2
print("Da Answer Is "..product)
else
if caculations.operation == "/" then
product = caculations.n1 / caculations.n2
print("Da Answer Is "..product)
equals()
end
end
end
end
end
end

--Events
B0.MouseClick:Connect(N0)
B1.MouseClick:Connect(N1)
B2.MouseClick:Connect(N2)
B3.MouseClick:Connect(N3)
B4.MouseClick:Connect(N4)
B5.MouseClick:Connect(N5)
B6.MouseClick:Connect(N6)
B7.MouseClick:Connect(N7)
B8.MouseClick:Connect(N8)
B9.MouseClick:Connect(N9)
Bdivide.MouseClick:Connect(divide)
Bminus.MouseClick:Connect(minus)
Bplus.MouseClick:Connect(plus)
Btimes.MouseClick:Connect(times)
Bequals.MouseClick:Connect(equals)

Alright, so i've been trying to make a Calculator with just 4 operations: = + / *. The calculator should do the following when done (Yes its uncompleted)

• Add all digits to calculation. (YEP)
• Able to Plus, Divide, Equal, And Multiply. (Almost There!)
• Able to show numbers on a SurfaceGui.
• Able to Join digits Each Time A Digit Is Pressed. e.g 0 > 00 > 000 > 0000 (YEP)
• Able to show a product. Thing is, on:

function caculate()

(on line 155) i spotted an error on "function", it said: "Expected identifier, got function". WOAH! My mind went bonkers there. Ive never encountered anything like it. I Could not think of anything to do! The script is above for people to inspect it ^ Please Help!

• Polandball45

P.S: I know its a bit large and messy with little to no try of compacting it.