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Introduction In this piece of coursework I have been asked to investigate the relationship between the T-number and the T-Total. As the diagram above shows, the number at the foot of the 'T' shape is called the T-number. If you add all of the numbers up inside the 'T' shape then you get the T-total. I will be using algebra to try and see if I can find a relationship between the T-number and the T-Total. 9x9 On the grid below, it shows the 'T' shape. I will move this shape across and down. The arrows show the direction the 'T' has moved. Across T-Number T-Total 20 37 21 42 22 47 23 52 24 57 The T-total goes up by 5 each time. This is because as the 'T' is moved each number increases by 1. Down T-Number T-Total 20 37 29 82 38 127 47 172 56 217 The T-total goes up by 45 each time. This is because as the 'T' is moved each number increases by 9. If I give each number inside the 'T' shape a value in...

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