This is all you need to do for this one add quotes around the number to make it a string. Then for the question I don't know if you need to answer it but I said that when there is only one string it creates and addition problem of 24 + 24 and then when there are two strings it puts them right next to each other making it look like the number 2424.
Short term memory is in which a person may forgot very previously introduced knowledge, whereas working memory...well...works. Most people have working memory.
