"Clue words" are words or phrases that give you hints or indications about something. They help you understand or solve a problem more easily by giving you important information or pointing you in the right direction. Full definition
Yet most word problems on this grade level have clue words in them. (hellothinkster.com)
Consider using common clue words as in the table below (adapted from Improving reading comprehension in kindergarten through 3rd grade: A practice guide). (edutopia.org)