Am i crazy or the native calculator on MacOS Sierra is not working ? For instance, if i want to sum 10 + 20 , i do the follwoing :
1 - Type '10' 2 - Type '+' 3 - Type '20' 4 - Type 'Enter'
What calculator does after the step 4 is to REPEAT the '20', instead of giving me the correct result (30) :
This problem started after upgrade to Sierra 10.12.6.