Arrange the numbers on the squares so that each of the three digit numbers formed horizontally are square numbers and each of the three digit numbers formed vertically are even.
Congratulations!
How many different ways can this puzzle be solved using these digits?
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The numbers in the circles can be moved by dragging them using a mouse or your finger (if you have a touch screen or interactive whiteboard).
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Topics: Starter  Number  Problem Solving
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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: Transum.org/go/?Start=February10 However it would be better to assign one of the student interactive activities below. 

Here is the URL which will take them to a game involving square numbers.
Too difficult? Try the simplified version (two digit numbers).