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Times Tables – Helpful Number Patterns Colour in the 2X Tables in this number square (there is a quick way to do this!) 1 11 21 31 41 51 61 71 81 91 2 12 22 32 42 52 62 72 82 92 3 13 23 33 43 53 63 73 83 93 4 14 24 34 44 54 64 74 84 94 5 15 25 35 45 55 65 75 85 95 6 16 26 36 46 56 66 76 86 96 7 17 27 37 47 57 67 77 87 97 8 18 28 38 48 58 68 78 88 98 9 19 29 39 49 59 69 79 89 99 10 20 30 40 50 60 70 80 90 100 How do you know if a number is in the 2X Tables? Is this number in the 2X Tables? 1354982 yes/no Other important reasons for knowing your 2X Tables are 1. Doubling X2 2. Halving ÷2 3. Easy calculations check for the X4 TABLES – (x4 = x2x2) X4 Tables – quick facts: All even numbers If the last 2 digits of a number are a multiple of 4 then number is in X4 tables e.g. 116 16 is 4x4 so in x4 tables 1 11 21 31 41 51 61 71 81 91 2 12 22 32 42 52 62 72 82 92 3 13 23 33 43 53 63 73 83 93 4 14 24 34 44 54 64 74 84 94 5 15 25 35 45 55 65 75 85 95 6 16 26 36 46 56 66 76 86 96 7 17 27 37 47 57 67 77 87 97 8 18 28 38 48 58 68 78 88 98 9 19 29 39 49 59 69 79 89 99 10 20 30 40 50 60 70 80 90 100 Colour in your x4 tables - can you predict what comes next? Stop half way… Will the highlighted number be in the x4 Tables? Yes/no Were you right? Yes/no Use different colour to draw a circle around the X8 Tables What do you notice? 1 11 21 31 41 51 61 71 81 91 2 12 22 32 42 52 62 72 82 92 3 13 23 33 43 53 63 73 83 93 4 14 24 34 44 54 64 74 84 94 5 15 25 35 45 55 65 75 85 95 6 16 26 36 46 56 66 76 86 96 7 17 27 37 47 57 67 77 87 97 8 18 28 38 48 58 68 78 88 98 9 19 29 39 49 59 69 79 89 99 10 20 30 40 50 60 70 80 90 100 You will need to colour the x3 tables here. How do you check if a number is in the X3 tables? Add up the digits in this number – is the total a multiple of 3? 12346911 is it in x3 tables? Now circle the X9 tables – what do you notice about the pattern of numbers? All numbers in the x9 tables add up to 9 or a multiple of 9. e.g. 2 + 7 = 9 8+1=9 Can you demonstrate the finger method for X9 tables? Ask your tutor if you are not sure! Final 3 tables are x6, x7, and x8 There are no major clues to remembering all of these tables. You may want to remember that x8 tables drop the unit’s digits in 2s each time e.g. 8 16 (8-2) 24 (6-2) Etc One of the most difficult tables to remember is 7X8=56 A little clue is that the numbers run 5,6,7,8 1 11 21 31 41 51 61 71 81 91 2 12 22 32 42 52 62 72 82 92 3 13 23 33 43 53 63 73 83 93 4 14 24 34 44 54 64 74 84 94 5 15 25 35 45 55 65 75 85 95 6 16 26 36 46 56 66 76 86 96 7 17 27 37 47 57 67 77 87 97 8 18 28 38 48 58 68 78 88 98 9 19 29 39 49 59 69 79 89 99 10 20 30 40 50 60 70 80 90 100 Note below any other timetables memory aids the group recommends. Any other comments – e.g. how can you use this to help your child?