Need help making a calculator

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<dfn>#pragma endregion</dfn><var>private</var>: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
				 Lblcalc->Text = <kbd>"+"</kbd>;

	}
	<var>private</var>: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) {
				 Lblcalc->Text = <kbd>"-"</kbd>;


	}
	<var>private</var>: System::Void button3_Click(System::Object^  sender, System::EventArgs^  e) {
				 Lblcalc->Text = <kbd>"*"</kbd>;

	}
	<var>private</var>: System::Void button4_Click(System::Object^  sender, System::EventArgs^  e) {
				 Lblcalc->Text = <kbd>"/"</kbd>;

	}



	<var>private</var>: System::Void Btn1_Click(System::Object^  sender, System::EventArgs^  e) {<var>if</var> (Lblcalc->Text == <kbd>"0"</kbd>){

					 Lblcalc->Text = <kbd>"1"</kbd>;
				 }<var>else</var> {
					 Lblcalc->Text = Convert::ToInt32(Lblcalc->Text) + <kbd>"1"</kbd>;
				 }


	}
	};
}

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<var>private</var>: System::Void Btn1_Click(System::Object^  sender, System::EventArgs^  e) {<var>if</var> (Lblcalc->Text == <kbd>"0"</kbd>){

					 Lblcalc->Text = <kbd>"1"</kbd>;
				 }<var>else</var> {
					 Lblcalc->Text = Convert::ToInt32(Lblcalc->Text) + <kbd>"1"</kbd>;
				 }

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<var>class</var> numbers{<var>public</var>:<var>void</var> num();




};

numbers::num(<var>int</var> x){<var>if</var> (Lblcalc->Text == <kbd>"0"</kbd>){

		Lblcalc->Text = x;
	}<var>else</var> {
		Lblcalc->Text = Convert::ToInt32(Lblcalc->Text) +x;
	}

}

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[code]<var>private</var>: System::Void Btn1_Click(System::Object^  sender, System::EventArgs^  e) {

numbers one
one.num(1)