diff --git a/tests/parser/functions/test_addmod.py b/tests/parser/functions/test_addmod.py
index 67a7e9b101..b3135660bb 100644
--- a/tests/parser/functions/test_addmod.py
+++ b/tests/parser/functions/test_addmod.py
@@ -55,3 +55,35 @@ def c() -> uint256:
     c = get_contract_with_gas_estimation(code)
 
     assert c.foo() == 2
+
+
+def test_uint256_addmod_evaluation_order(get_contract_with_gas_estimation):
+    code = """
+a: uint256
+
+@external
+def foo1() -> uint256:
+    self.a = 0
+    return uint256_addmod(self.a, 1, self.bar())
+
+@external
+def foo2() -> uint256:
+    self.a = 0
+    return uint256_addmod(self.a, self.bar(), 3)
+
+@external
+def foo3() -> uint256:
+    self.a = 0
+    return uint256_addmod(1, self.a, self.bar())
+
+@internal
+def bar() -> uint256:
+    self.a = 1
+    return 2
+    """
+
+    c = get_contract_with_gas_estimation(code)
+
+    assert c.foo1() == 1
+    assert c.foo2() == 2
+    assert c.foo3() == 1
diff --git a/tests/parser/functions/test_ec.py b/tests/parser/functions/test_ec.py
index 9ce37d0721..e1d9e3d2ee 100644
--- a/tests/parser/functions/test_ec.py
+++ b/tests/parser/functions/test_ec.py
@@ -76,6 +76,26 @@ def foo(a: Foo) -> uint256[2]:
     assert_side_effects_invoked(c1, lambda: c2.foo(c1.address, transact={}))
 
 
+def test_ecadd_evaluation_order(get_contract_with_gas_estimation):
+    code = """
+x: uint256[2]
+
+@internal
+def bar() -> uint256[2]:
+    self.x = ecadd([1, 2], [1, 2])
+    return [1, 2]
+
+@external
+def foo() -> bool:
+    self.x = [1, 2]
+    a: uint256[2] = ecadd([1, 2], [1, 2])
+    b: uint256[2] = ecadd(self.x, self.bar())
+    return a[0] == b[0] and a[1] == b[1]
+    """
+    c = get_contract_with_gas_estimation(code)
+    assert c.foo() is True
+
+
 def test_ecmul(get_contract_with_gas_estimation):
     ecmuller = """
 x3: uint256[2]
@@ -136,3 +156,23 @@ def foo(a: Foo) -> uint256[2]:
     assert c2.foo(c1.address) == G1_times_three
 
     assert_side_effects_invoked(c1, lambda: c2.foo(c1.address, transact={}))
+
+
+def test_ecmul_evaluation_order(get_contract_with_gas_estimation):
+    code = """
+x: uint256[2]
+
+@internal
+def bar() -> uint256:
+    self.x = ecmul([1, 2], 3)
+    return 3
+
+@external
+def foo() -> bool:
+    self.x = [1, 2]
+    a: uint256[2] = ecmul([1, 2], 3)
+    b: uint256[2] = ecmul(self.x, self.bar())
+    return a[0] == b[0] and a[1] == b[1]
+    """
+    c = get_contract_with_gas_estimation(code)
+    assert c.foo() is True
diff --git a/tests/parser/functions/test_mulmod.py b/tests/parser/functions/test_mulmod.py
index 1ea7a3f8e8..96477897b9 100644
--- a/tests/parser/functions/test_mulmod.py
+++ b/tests/parser/functions/test_mulmod.py
@@ -73,3 +73,35 @@ def c() -> uint256:
     c = get_contract_with_gas_estimation(code)
 
     assert c.foo() == 600
+
+
+def test_uint256_mulmod_evaluation_order(get_contract_with_gas_estimation):
+    code = """
+a: uint256
+
+@external
+def foo1() -> uint256:
+    self.a = 1
+    return uint256_mulmod(self.a, 2, self.bar())
+
+@external
+def foo2() -> uint256:
+    self.a = 1
+    return uint256_mulmod(self.bar(), self.a, 2)
+
+@external
+def foo3() -> uint256:
+    self.a = 1
+    return uint256_mulmod(2, self.a, self.bar())
+
+@internal
+def bar() -> uint256:
+    self.a = 7
+    return 5
+    """
+
+    c = get_contract_with_gas_estimation(code)
+
+    assert c.foo1() == 2
+    assert c.foo2() == 1
+    assert c.foo3() == 2