diff --git a/stdlib/2and3/math.pyi b/stdlib/2and3/math.pyi
index 44fb75c33..2595566a0 100644
--- a/stdlib/2and3/math.pyi
+++ b/stdlib/2and3/math.pyi
@@ -7,6 +7,9 @@ import sys
 
 e = ...  # type: float
 pi = ...  # type: float
+if sys.version_info >= (3, 5):
+    inf = ...  # type: float
+    nan = ...  # type: float
 
 def acos(x: float) -> float: ...
 def acosh(x: float) -> float: ...
@@ -31,7 +34,11 @@ def fmod(x: float, y: float) -> float: ...
 def frexp(x: float) -> Tuple[float, int]: ...
 def fsum(iterable: Iterable) -> float: ...
 def gamma(x: float) -> float: ...
+if sys.version_info >= (3, 5):
+    def gcd(a: int, b: int) -> int: ...
 def hypot(x: float, y: float) -> float: ...
+if sys.version_info >= (3, 5):
+    def isclose(a: float, b: float, rel_tol: float = ..., abs_tol: float = ...) -> bool: ...
 def isinf(x: float) -> bool: ...
 if sys.version_info[0] >= 3:
     def isfinite(x: float) -> bool: ...
@@ -41,6 +48,8 @@ def lgamma(x: float) -> float: ...
 def log(x: float, base: float = ...) -> float: ...
 def log10(x: float) -> float: ...
 def log1p(x: float) -> float: ...
+if sys.version_info >= (3, 3):
+    def log2(x: float) -> float: ...
 def modf(x: float) -> Tuple[float, float]: ...
 def pow(x: float, y: float) -> float: ...
 def radians(x: float) -> float: ...