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For this piece of GCSE maths coursework, I am aiming to find out the relationship between the T-Number and T-Total. To do this I am first going to use the 9 by 9 grid. After that, I am going to try out my rule by using different grids, 8 by 8, 6 by 6 etc Now I am going to do my first investigation, which is the 9 by 9 grid, and for this, I am trying to find out the T-number and T-total. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 47 48 49 57 66 46 47 48 56 65 N=65 N=66 T=46+47+48+56+65=262 T=47+48+49+57+66=267 48 49 50 58 20 49 50 51 59 68 N=67 N=68 T=49+50+51+59+68=277 T=48+49+50+58+67=272 51 52 53 61 70 50 51 52 60 69 N=69 N=70 T=50+51+52+60+69=282 T=51+52+53+61+70=287 Key: - N= T-Number T= T-Total Now I am going to see the pattern that I made with the T-Number and the T-Total T-Number T-Total Pattern 65 262 5 66 267 5 67 272 5 68 277 5 69 282 5 70 287 5 I have found out that every time you move to the right, you add 5 and every time you move to the left, you subtract 5. I know...

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