diff --git a/tests/10_cmath.py b/tests/10_cmath.py
index a850f0e3..515c0b50 100644
--- a/tests/10_cmath.py
+++ b/tests/10_cmath.py
@@ -4,12 +4,12 @@ import math
 c1 = complex(3, 4)
 c2 = complex(2, 4.5)
 
-assert c1 + 5 == complex(8,4)
-assert c1 + c2 == complex(5, 8.5)
-assert c1 - c2 == complex(1, -0.5)
-assert c1*4 == complex(12, 16)
-assert c1*c2 == complex(-12, 21.5)
-assert c2/c1 == complex(0.96, 0.22)
+assert isclose(c1 + 5, complex(8, 4))
+assert isclose(c1 + c2, complex(5, 8.5))
+assert isclose(c1 - c2, complex(1, -0.5))
+assert isclose(c1*4, complex(12, 16))
+assert isclose(c1*c2, complex(-12, 21.5))
+assert isclose(c2/c1, complex(0.96, 0.22))
 assert isclose(c2**2, complex(-16.25, 17.99999999999999))
 
 assert 1+2j == complex(1, 2) == 2j+1