diff --git a/src/org/nwapw/abacus/number/NaiveNumber.java b/src/org/nwapw/abacus/number/NaiveNumber.java
index 10b89a4..1bb73b8 100644
--- a/src/org/nwapw/abacus/number/NaiveNumber.java
+++ b/src/org/nwapw/abacus/number/NaiveNumber.java
@@ -37,4 +37,24 @@ public class NaiveNumber implements Number {
     public Number negate() {
         return new NaiveNumber(-value);
     }
+
+    @Override
+    public Number zero() {
+        return new NaiveNumber(0);
+    }
+
+    @Override
+    public Number one() {
+        return new NaiveNumber(1);
+    }
+
+    @Override
+    public Number valueOf(int val) {
+        return new NaiveNumber(value);
+    }
+
+    @Override
+    public Number valueOf(double val) {
+        return new NaiveNumber(value);
+    }
 }
diff --git a/src/org/nwapw/abacus/number/Number.java b/src/org/nwapw/abacus/number/Number.java
index 5a42949..0f11c45 100755
--- a/src/org/nwapw/abacus/number/Number.java
+++ b/src/org/nwapw/abacus/number/Number.java
@@ -9,4 +9,10 @@ public interface Number {
     Number subtract(Number subtrahend);
     Number negate();
 
+    Number zero();
+    Number one();
+
+    Number valueOf(int val);
+    Number valueOf(double val);
+
 }