diff --git a/exercises/binary/BinaryTests.fs b/exercises/binary/BinaryTests.fs
index fb82e3a73..b41362666 100644
--- a/exercises/binary/BinaryTests.fs
+++ b/exercises/binary/BinaryTests.fs
@@ -17,6 +17,9 @@ let ``Binary converts to decimal`` (input: string) =
 [<TestCase("2", Ignore = "Remove to run test case")>]
 [<TestCase("5", Ignore = "Remove to run test case")>]
 [<TestCase("9", Ignore = "Remove to run test case")>]
+[<TestCase("a10", Ignore = "Remove to run test case")>]
+[<TestCase("100b", Ignore = "Remove to run test case")>]
+[<TestCase("10c01", Ignore = "Remove to run test case")>]
 [<TestCase("134678", Ignore = "Remove to run test case")>]
 [<TestCase("abc10z", Ignore = "Remove to run test case")>]
 let ``Invalid binary is decimal 0`` (input: string) =