diff --git a/homeworks/serhii.usanin_serhiivus/1-basics/basics.js b/homeworks/serhii.usanin_serhiivus/1-basics/basics.js
new file mode 100644
index 00000000..3773b290
--- /dev/null
+++ b/homeworks/serhii.usanin_serhiivus/1-basics/basics.js
@@ -0,0 +1,57 @@
+const firstNumber = 15;
+const secondNumber = 17;
+const degree = 3;
+const firstString = 'Hello ';
+const secondString = 'world ';
+
+let sum = 0;
+let difference = 0;
+let product = 0;
+let fraction = 0;
+let renOfDivision = 0;
+let expFirst = 0;
+let divByZero = 0;
+let divByString = 0;
+const exampNull = null;
+let concat = '';
+let diffString = '';
+
+sum = firstNumber + secondNumber;
+console.log('First number = ', firstNumber,
+    ' Second number =', secondNumber, ' Sum = ', sum, typeof sum);
+
+difference = firstNumber - secondNumber;
+console.log('First number = ', firstNumber,
+    ' Second number =', secondNumber, ' Difference = ', difference, typeof difference);
+
+product = firstNumber * secondNumber;
+console.log('First number = ', firstNumber,
+    ' Second number =', secondNumber, ' Product = ', product, typeof product);
+
+fraction = firstNumber / secondNumber;
+console.log('First number = ', firstNumber,
+    ' Second number =', secondNumber, ' Fraction = ', fraction, typeof fraction);
+
+renOfDivision = firstNumber % secondNumber;
+console.log('First number = ', firstNumber,
+    ' Second number =', secondNumber, ' Remainder of division = ', renOfDivision, typeof renOfDivision);
+
+expFirst = firstNumber ** degree;
+console.log('First number = ', firstNumber,
+    ' Degree =', degree, ' Exponentiate = ', expFirst, typeof expFirst);
+
+divByZero = firstNumber / 0;
+console.log('First number = ', firstNumber, ' Division by zero = ', divByZero, typeof divByZero);
+
+divByString = firstNumber / 'ss';
+console.log('First number = ', firstNumber, ' Division by string = ', divByString, typeof divByString);
+
+console.log(' null = ', exampNull, typeof exampNull);
+
+concat = firstString + secondString;
+console.log(' Concat = ', concat, typeof concat);
+
+diffString = firstString - secondString;
+console.log(' diff = ', diffString, typeof diffString);
+
+console.log('undef:', typeof kjf);