diff --git a/exercises/FizzBuzz/FizzBuzz.php b/exercises/FizzBuzz/FizzBuzz.php
index 2330f97..c9b9bb1 100644
--- a/exercises/FizzBuzz/FizzBuzz.php
+++ b/exercises/FizzBuzz/FizzBuzz.php
@@ -15,4 +15,20 @@
  */
 final class FizzBuzz
 {
+    public static function print(string $number): void
+    {
+        for ($i = 1; $i <= $number; $i++) {
+            $result = '';
+            if ($i % 3 === 0) {
+                $result .= 'fizz';
+            }
+            if ($i % 5 === 0) {
+                $result .= 'buzz';
+            }
+            
+            echo $result ? "{$result}, " :"{$i}, " ; 
+        }
+    }
 }
+
+FizzBuzz::print('15');
diff --git a/exercises/Numbers/Numbers.php b/exercises/Numbers/Numbers.php
index 4c16cda..d1d1faa 100644
--- a/exercises/Numbers/Numbers.php
+++ b/exercises/Numbers/Numbers.php
@@ -10,4 +10,14 @@
  */
 final class Numbers
 {
+    public static function add(int $n): int
+    {
+        $sum = 0;
+        for($i=1; $i<=$n; $i++){
+            $sum += $i;
+        }
+        return $sum;
+    }
 }
+
+var_dump(Numbers::add(3));
diff --git a/exercises/Reverse/Reverse.php b/exercises/Reverse/Reverse.php
index 5ab3952..ef9e53e 100644
--- a/exercises/Reverse/Reverse.php
+++ b/exercises/Reverse/Reverse.php
@@ -19,4 +19,31 @@
  */
 final class Reverse
 {
+    public static function int(int $n): int
+    {
+        $castToString = (string) $n;
+        $lengthOfNumber = strlen($castToString);
+        $reversedString = '';
+        for($i = 0; $i < $lengthOfNumber; $i++){
+            $reversedString .= $castToString[$lengthOfNumber - $i -1];
+        }
+
+        if($n < 0){
+            return (int) $reversedString * -1;
+        }
+        return (int)$reversedString;
+    }
+
+    public static function string(string $string): string
+    {
+        $lengthOfNumber = strlen($string);
+        $reversedString = '';
+        for($i = 0; $i < $lengthOfNumber; $i++){
+            $reversedString .= $string[$lengthOfNumber - $i -1];
+        }
+        return $reversedString;
+    }
 }
+
+// var_dump(Reverse::int(-12));
+// var_dump(Reverse::string('mehdi'));
\ No newline at end of file
diff --git a/tests/Reverse/ReverseTest.php b/tests/Reverse/ReverseTest.php
index 3b96d2f..93b45b5 100644
--- a/tests/Reverse/ReverseTest.php
+++ b/tests/Reverse/ReverseTest.php
@@ -12,7 +12,6 @@ final class ReverseTest extends TestCase
 {
     public function testHasMethods(): void
     {
-        self::markTestSkipped();
         self::assertTrue(
             method_exists(Reverse::class, 'int'),
             'Class does not have static method int'
@@ -25,43 +24,36 @@ public function testHasMethods(): void
 
     public function testCanReverseInt(): void
     {
-        self::markTestSkipped();
         self::assertSame(21, Reverse::int(12));
     }
 
     public function testCanReverseIntWithThreeDigits(): void
     {
-        self::markTestSkipped();
         self::assertSame(321, Reverse::int(123));
     }
 
     public function testCanReverseIntZeros(): void
     {
-        self::markTestSkipped();
         self::assertSame(3, Reverse::int(300));
     }
 
     public function testCanReverseNegativeInt(): void
     {
-        self::markTestSkipped();
         self::assertSame(-21, Reverse::int(-12));
     }
 
     public function testCanReverseNegativeIntWithZeros(): void
     {
-        self::markTestSkipped();
         self::assertSame(-21, Reverse::int(-120));
     }
 
     public function testCanReverseString(): void
     {
-        self::markTestSkipped();
         self::assertSame('ytrewq', Reverse::string('qwerty'));
     }
 
     public function testCanReverseStringWithWhitespace(): void
     {
-        self::markTestSkipped();
         self::assertSame('ytr ewq ', Reverse::string(' qwe rty'));
     }
 }