Help me in solving PLSQL04 problem

help
,
1

My issue

Give me a write approach to solve a problem

My code

DECLARE
    num1 NUMBER:= 10;
    num2 NUMBER:= 5;
    result NUMBER;

BEGIN
    result := num1 + num2;
    DBMS_OUTPUT.PUT_LINE('Addition result: ' || result);
    
    result := num1 - num2;
    DBMS_OUTPUT.PUT_LINE('Substraction result: ' || result);
    
    result := num1 * num2;
    DBMS_OUTPUT.PUT_LINE('Multiplication result: ' || result);
    
    result := num1 / num2;
    DBMS_OUTPUT.PUT_LINE('Division result: ' || result);
    
END;
/

Learning course: Database management systems
Problem Link: Sample syntax in Database management systems