Coursework.Info - Inspiration in an Instant

On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:

Number Grid Look at the Number Grid below: 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 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 Use the Following rule: Find the product of the top left number, and the bottom right number in the square. Do the same with the bottom left and the top right numbers. Calculate the difference between these numbers. Example: 12 x 23 = 276 13 x 22 = 286 286 - 276 = 10 The difference is 10 Using the same rule with a different set of numbers 65 x 76 = 4940 66 x 75 = 4950 4940 - 4950 = 10 So the General rule for a 2x2 square in a 10x10 grid is: X X + 1 X + 10 X + 11 X x (x+11) = x + 11x (X+1) x (X+10) = x + 10x + x + 10 = x + 11x + 10 (x + 11x) - (x + 11x + 10) = 10 Using the same rule with a 3x3 square in a 10x10 grid: 15 16 ...

Get instant access

• Instant, unlimited access to our documents in full
• Swap your work for free access, or pay £4.99
• To see the full version of this document and 146,192 others

OR

Receive email updates for this category

• Simply tell us your email address and receive a weekly Study Help Email for FREE
• Receive 3 FREE essay views with each email
• Get all the latest essays from Coursework.Info & discussion from TheStudentRoom.co.uk