Arrange the numbers on the yellow tiles so that the sum of the numbers in the vertical line is the same as the sum of the numbers in the horizontal line
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How many different ways are there of doing this task?
A selfchecking, interactive version of this activity with 30 different puzzles is here.
This is the
projectable version
of this activity. See
the link below to the
interactive version
designed for
pupils to use.
Topics: Starter  Arithmetic  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=February3 However it would be better to assign one of the student interactive activities below. 

Here is the URL which will take them to the interactive version of this activity with 30 different variations.