diff --git a/src/Math/BrickMathCalculator.php b/src/Math/BrickMathCalculator.php
index 649f580..740391f 100644
--- a/src/Math/BrickMathCalculator.php
+++ b/src/Math/BrickMathCalculator.php
@@ -49,10 +49,11 @@ final class BrickMathCalculator implements CalculatorInterface
         $sum = BigInteger::of($augend->toString());
 
         foreach ($addends as $addend) {
+            /** @phpstan-ignore possiblyImpure.methodCall */
             $sum = $sum->plus($addend->toString());
         }
 
-        /** @phpstan-ignore possiblyImpure.new */
+        /** @phpstan-ignore possiblyImpure.new, possiblyImpure.methodCall */
         return new IntegerObject((string) $sum);
     }
 
@@ -61,10 +62,11 @@ final class BrickMathCalculator implements CalculatorInterface
         $difference = BigInteger::of($minuend->toString());
 
         foreach ($subtrahends as $subtrahend) {
+            /** @phpstan-ignore possiblyImpure.methodCall */
             $difference = $difference->minus($subtrahend->toString());
         }
 
-        /** @phpstan-ignore possiblyImpure.new */
+        /** @phpstan-ignore possiblyImpure.new, possiblyImpure.methodCall */
         return new IntegerObject((string) $difference);
     }
 
@@ -73,10 +75,11 @@ final class BrickMathCalculator implements CalculatorInterface
         $product = BigInteger::of($multiplicand->toString());
 
         foreach ($multipliers as $multiplier) {
+            /** @phpstan-ignore possiblyImpure.methodCall */
             $product = $product->multipliedBy($multiplier->toString());
         }
 
-        /** @phpstan-ignore possiblyImpure.new */
+        /** @phpstan-ignore possiblyImpure.new, possiblyImpure.methodCall */
         return new IntegerObject((string) $product);
     }
 
@@ -92,22 +95,23 @@ final class BrickMathCalculator implements CalculatorInterface
         $quotient = BigDecimal::of($dividend->toString());
 
         foreach ($divisors as $divisor) {
+            /** @phpstan-ignore possiblyImpure.methodCall */
             $quotient = $quotient->dividedBy($divisor->toString(), $scale, $brickRounding);
         }
 
         if ($scale === 0) {
-            /** @phpstan-ignore possiblyImpure.new */
+            /** @phpstan-ignore possiblyImpure.new, possiblyImpure.methodCall, possiblyImpure.methodCall */
             return new IntegerObject((string) $quotient->toBigInteger());
         }
 
-        /** @phpstan-ignore possiblyImpure.new */
+        /** @phpstan-ignore possiblyImpure.new, possiblyImpure.methodCall */
         return new Decimal((string) $quotient);
     }
 
     public function fromBase(string $value, int $base): IntegerObject
     {
         try {
-            /** @phpstan-ignore possiblyImpure.new */
+            /** @phpstan-ignore possiblyImpure.new, possiblyImpure.methodCall */
             return new IntegerObject((string) BigInteger::fromBase($value, $base));
         } catch (MathException | \InvalidArgumentException $exception) {
             throw new InvalidArgumentException(
@@ -121,6 +125,7 @@ final class BrickMathCalculator implements CalculatorInterface
     public function toBase(IntegerObject $value, int $base): string
     {
         try {
+            /** @phpstan-ignore possiblyImpure.methodCall */
             return BigInteger::of($value->toString())->toBase($base);
         } catch (MathException | \InvalidArgumentException $exception) {
             throw new InvalidArgumentException(