diff --git a/src/main/java/org/libj/math/LongDecimal.java b/src/main/java/org/libj/math/LongDecimal.java
index bb6db787..483c8e43 100644
--- a/src/main/java/org/libj/math/LongDecimal.java
+++ b/src/main/java/org/libj/math/LongDecimal.java
@@ -233,7 +233,7 @@ else if (scale < 0) {
    *         {@link LongDecimal#encode(long,short,byte,long) encoded} value and
    *         and sign {@code bits}.
    */
-  public static BigDecimal toBidDecimal(final long encoded, final byte bits) {
+  public static BigDecimal toBigDecimal(final long encoded, final byte bits) {
     final long value = decodeValue(encoded, bits);
     final short scale = decodeScale(encoded, bits);
     return BigDecimal.valueOf(value, scale);
diff --git a/src/test/java/org/libj/math/LongDecimalArithmeticTest.java b/src/test/java/org/libj/math/LongDecimalArithmeticTest.java
index 2c8886e4..a8dd6908 100644
--- a/src/test/java/org/libj/math/LongDecimalArithmeticTest.java
+++ b/src/test/java/org/libj/math/LongDecimalArithmeticTest.java
@@ -207,7 +207,7 @@ BigDecimal run(final BigDecimal bd1, final BigDecimal bd2, final BigDecimal expe
       final short s = decodeScale(result, bits);
       final BigDecimal expectedScaled = expected.setScale(s, RoundingMode.FLOOR);
 
-      final BigDecimal actual = toBidDecimal(result, bits);
+      final BigDecimal actual = toBigDecimal(result, bits);
       final BigDecimal error = expectedScaled.subtract(actual).abs().divide(expected, precision16);
       errors[bits] = errors[bits] == null ? error : errors[bits].max(error);
 
@@ -261,6 +261,27 @@ final BigDecimal epsilon(final byte bits) {
     }
   }
 
+  private static final ArithmeticOperation neg = new FunctionOperation("neg", long.class) {
+    @Override
+    Long test(final long ld1, final long ld2, final BigDecimal bd1, final BigDecimal bd2, final byte bits, final long defaultValue, final long[] time) {
+      long ts = System.nanoTime();
+      final long result = neg(ld1, bits, defaultValue);
+      ts = System.nanoTime() - ts;
+      if (result != defaultValue)
+        time[0] += ts;
+
+      return result;
+    }
+
+    @Override
+    BigDecimal control(final BigDecimal bd1, final BigDecimal bd2, final long[] time) {
+      final long ts = System.nanoTime();
+      final BigDecimal result = bd1.negate();
+      time[1] += System.nanoTime() - ts;
+      return result;
+    }
+  };
+
   private static final ArithmeticOperation encodeBigDecimal = new FunctionOperation("encode", BigDecimal.class) {
     @Override
     Long test(final long ld1, final long ld2, final BigDecimal bd1, final BigDecimal bd2, final byte bits, final long defaultValue, final long[] time) {
@@ -386,6 +407,11 @@ public void testEncodeString() {
     test(encodeString);
   }
 
+  @Test
+  public void testNeg() {
+    test(neg);
+  }
+
   @Test
   public void testSetScale() {
     test(setScale);
diff --git a/src/test/java/org/libj/math/LongDecimalPredicateTest.java b/src/test/java/org/libj/math/LongDecimalPredicateTest.java
index 42c62348..7551f12c 100644
--- a/src/test/java/org/libj/math/LongDecimalPredicateTest.java
+++ b/src/test/java/org/libj/math/LongDecimalPredicateTest.java
@@ -23,6 +23,76 @@
 import org.junit.Test;
 
 public class LongDecimalPredicateTest extends LongDecimalTest {
+  private static final Operation<Short,Short> precision = new Operation<Short,Short>("precision", long.class, "~") {
+    @Override
+    BigDecimal run(final BigDecimal bd1, final BigDecimal bd2, final Short expected, final Short actual, final byte bits, final long defaultValue, final BigDecimal[] errors, final boolean[] failures) {
+      return expected.compareTo(actual) == 0 ? null : BigDecimal.ONE;
+    }
+
+    @Override
+    Short test(final long ld1, final long ld2, final BigDecimal bd1, final BigDecimal bd2, final byte bits, final long defaultValue, final long[] time) {
+      final long ts = System.nanoTime();
+      final short result = LongDecimal.precision(ld1, bits);
+      time[0] += System.nanoTime() - ts;
+      return result;
+    }
+
+    @Override
+    Short control(final BigDecimal bd1, final BigDecimal bd2, final long[] time) {
+      final long ts = System.nanoTime();
+      final short result = (short)bd1.precision();
+      time[1] += System.nanoTime() - ts;
+      return result;
+    }
+  };
+
+  private static final Operation<BigDecimal,BigDecimal> toBigDecimal = new Operation<BigDecimal,BigDecimal>("toBigDecimal", long.class, "~") {
+    @Override
+    BigDecimal run(final BigDecimal bd1, final BigDecimal bd2, final BigDecimal expected, final BigDecimal actual, final byte bits, final long defaultValue, final BigDecimal[] errors, final boolean[] failures) {
+      return expected.compareTo(actual) == 0 ? null : BigDecimal.ONE;
+    }
+
+    @Override
+    BigDecimal test(final long ld1, final long ld2, final BigDecimal bd1, final BigDecimal bd2, final byte bits, final long defaultValue, final long[] time) {
+      final long ts = System.nanoTime();
+      final BigDecimal result = LongDecimal.toBigDecimal(ld1, bits);
+      time[0] += System.nanoTime() - ts;
+      return result;
+    }
+
+    @Override
+    BigDecimal control(final BigDecimal bd1, final BigDecimal bd2, final long[] time) {
+      final String str = bd1.toString();
+      final long ts = System.nanoTime();
+      final BigDecimal result = new BigDecimal(str);
+      time[1] += System.nanoTime() - ts;
+      return result;
+    }
+  };
+
+  private static final Operation<Double,Double> toDouble = new Operation<Double,Double>("toDouble", long.class, "~") {
+    @Override
+    BigDecimal run(final BigDecimal bd1, final BigDecimal bd2, final Double expected, final Double actual, final byte bits, final long defaultValue, final BigDecimal[] errors, final boolean[] failures) {
+      return expected.compareTo(actual) == 0 ? null : BigDecimal.ONE;
+    }
+
+    @Override
+    Double test(final long ld1, final long ld2, final BigDecimal bd1, final BigDecimal bd2, final byte bits, final long defaultValue, final long[] time) {
+      final long ts = System.nanoTime();
+      final double result = LongDecimal.toDouble(ld1, bits);
+      time[0] += System.nanoTime() - ts;
+      return result;
+    }
+
+    @Override
+    Double control(final BigDecimal bd1, final BigDecimal bd2, final long[] time) {
+      final long ts = System.nanoTime();
+      final double result = bd1.doubleValue();
+      time[1] += System.nanoTime() - ts;
+      return result;
+    }
+  };
+
   private static final Operation<Integer,Integer> compare = new Operation<Integer,Integer>("compare", long.class, "<>") {
     @Override
     BigDecimal run(final BigDecimal bd1, final BigDecimal bd2, final Integer expected, final Integer actual, final byte bits, final long defaultValue, final BigDecimal[] errors, final boolean[] failures) {
@@ -53,7 +123,7 @@ private PredicateOperation(final String label, final Class<?> arg, final String
 
     @Override
     BigDecimal run(final BigDecimal bd1, final BigDecimal bd2, final BigDecimal expected, final Long actual, final byte bits, final long defaultValue, final BigDecimal[] errors, final boolean[] failures) {
-      return expected.compareTo(toBidDecimal(actual, bits)) == 0 ? null : BigDecimal.ONE;
+      return expected.compareTo(toBigDecimal(actual, bits)) == 0 ? null : BigDecimal.ONE;
     }
   }
 
@@ -261,4 +331,19 @@ public void testGte() {
   public void testToString() {
     test(toString);
   }
+
+  @Test
+  public void testToBigDecimal() {
+    test(toBigDecimal);
+  }
+
+  @Test
+  public void testToDouble() {
+    test(toDouble);
+  }
+
+  @Test
+  public void testPrecision() {
+    test(precision);
+  }
 }
\ No newline at end of file
diff --git a/src/test/java/org/libj/math/LongDecimalTest.java b/src/test/java/org/libj/math/LongDecimalTest.java
index 3ba5fdae..6ef4ca59 100644
--- a/src/test/java/org/libj/math/LongDecimalTest.java
+++ b/src/test/java/org/libj/math/LongDecimalTest.java
@@ -144,8 +144,8 @@ else if (i < preliminary.length) {
           ld2 = operation.randomEncoded(b);
         }
 
-        final BigDecimal bd1 = toBidDecimal(ld1, b);
-        final BigDecimal bd2 = toBidDecimal(ld2, b);
+        final BigDecimal bd1 = toBigDecimal(ld1, b);
+        final BigDecimal bd2 = toBigDecimal(ld2, b);
         Object actual = defaultValue;
         Object expected = defaultValue;
         BigDecimal error = BigDecimal.ZERO;