|3 + ?-7 = -4||3 - ?10 = -7|
|?7 + -1 = 6||?5 - -1 = 6|
|1 - ?-1 = 2||5 - ?10 = -5|
|4 + ? + ? = ? + ? + ?-2 + -2 = -2 + -2 + -2 + 6|
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(assuming all the question marks represent the same number)
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Teacher, do your students have access to computers such as tablets, iPads or Laptops? This page was really designed for projection on a whiteboard but if you really want the students to have access to it here is a concise URL for a version of this page without the comments:
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