One way to make a word problem slightly more complex is to include extra (but unused) information in the problem text. These worksheets have addition word problems with extra unused facts in the problem.
These slightly more advanced addition word problems build on the skills learned in the basic addition worksheets introduced earlier by including unapplied facts in the problem text.
Students will need to understand exactly which facts are necessary to solve the question being asked, and know when they can discard a specific fact given in the problem description. This prevents students from simply determining what operation is needed to solve a problem given based on a keyword showing up because some of the information isn't important to finding the correct answer.