diff --git a/apps/calculation/test/calculation_store.cpp b/apps/calculation/test/calculation_store.cpp
index 86cf0167c..cf251d910 100644
--- a/apps/calculation/test/calculation_store.cpp
+++ b/apps/calculation/test/calculation_store.cpp
@@ -104,6 +104,8 @@ QUIZ_CASE(calculation_display_exact_approximate) {
   Ion::Storage::sharedStorage()->recordNamed("a.exp").destroy();
   assertCalculationDisplay("3+x→f(x)", ::Calculation::Calculation::DisplayOutput::ExactOnly, ::Calculation::Calculation::EqualSign::Unknown, "x+3", nullptr, &globalContext, &store);
   Ion::Storage::sharedStorage()->recordNamed("f.func").destroy();
+  assertCalculationDisplay("1+1+random()", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, nullptr, &globalContext, &store);
+  assertCalculationDisplay("1+1+round(1.343,2)", ::Calculation::Calculation::DisplayOutput::ApproximateOnly, ::Calculation::Calculation::EqualSign::Unknown, nullptr, "3.34", &globalContext, &store);
 }
 
 QUIZ_CASE(calculation_symbolic_computation) {