diff --git a/aptos-stdlib/tests/math64_tests.move b/aptos-stdlib/tests/math64_tests.move
new file mode 100644
index 000000000..4657fab3d
--- /dev/null
+++ b/aptos-stdlib/tests/math64_tests.move
@@ -0,0 +1,21 @@
+#[test_only]
+module aptos_std::math64_tests {
+    use aptos_std::math64;
+
+    #[test]
+    fun test_nested_mul_div() {
+       let a = math64::mul_div(1, 1, 1);
+       assert!(math64::mul_div(1, a, 1) == 1, 0);
+    }
+
+    #[test]
+    fun test_nested_mul_div2() {
+	assert!(math64::mul_div(1, math64::mul_div(1, 1, 1),1) == 1, 0);
+    }
+
+    #[test]
+    fun test_nested_mul_div3() {
+        let a = math64::mul_div(1, math64::mul_div(1, 1, 1),1);
+        assert!(a == 1, 0);
+    }
+}