Trick questions

In almost every set of word problems there is at least one trick question.  It gets you used to a type of problem. You can never just answer any word problem while just looking at the numbers you have to figure out the operation and the label. You also have to use your logic to find out really? Or figure out if it is the object that doesn't make sense you also have to be on the look out for extra information so you can't just add everything. Then you will just solve it