The 19 times table                         ...in a hurrydtcoulson@gmail.com
1 9      Watch what happens      when I write down      the first few terms of      the 19TT.
1 93      Watch what happens      when I write down      the first few terms of      the 19TT.
1 93 8      Watch what happens      when I write down      the first few terms of      the 19TT.
1 93 85      Watch what happens      when I write down      the first few terms of      the 19TT.
1 93 85 7      Watch what happens      when I write down      the first few terms of      the 19TT.
1 93 85 7      Can you see what’s7 6   going on here?
1 93 85 7      Can you see what’s7 6   going on here?9 5
1 9  3 8 5 7        The left side     is 7 6    growing by 2... 9 51 1 4
1 9  3 8  5 7        ... and the right side is  7 6   counting backwards        from nine.  9 51 1 41 3 3
1 9  3 8  5 7  7 6  9 51 1 41 3 31 5 2
1 9  3 8  5 7  7 6  9 51 1 41 3 31 5 21 7 1
1 9  3 8  5 7  7 6  9 51 1 41 3 31 5 21 7 11 9 0
1 9  3 8  5 7  7 6  9 51 1 41 3 31 5 2   Draw a line at the        bottom....1 7 11 9 0
1 9   9  3 8   8  5 7   7  7 6   6  9 5   51 1 4   41 3 3   31 5 2   2   ... and carry on.1 7 1   11 9 0   0
1 9   2 09  3 8      8  5 7      7  7 6      6  9 5      51 1 4      41 3 3      31 5 2      2   The left number drops    ...
1 9   2 09  3 8   2 28  5 7      7  7 6      6  9 5      51 1 4      41 3 3      31 5 2      2   ...and then grows by 2   ...
1 9   2 09  3 8   2 28  5 7   2 4 7  7 6       6  9 5       51 1 4      41 3 3       31 5 2       2   ...and then grows by...
1 9   2 09  3 8   2 28  5 7   2 4 7  7 6   2 66  9 5       51 1 4      41 3 3       31 5 2       2   ...and then grows by ...
1 9   2 09  3 8   2 28  5 7   2 4 7  7 6   2 66  9 5   2 8 51 1 4      41 3 3       31 5 2       21 7 1       11 9 0       0
1 9   2 09  3 8   2 28  5 7   2 4 7  7 6   2 66  9 5   2 8 51 1 4   3 041 3 3       31 5 2       21 7 1       11 9 0       0
1 9   2 09  3 8   2 28  5 7   2 4 7  7 6   2 66  9 5   2 8 51 1 4   3 041 3 3   3 2 31 5 2       21 7 1       11 9 0       0
1 9   2 09  3 8   2 28  5 7   2 4 7  7 6   2 66  9 5   2 8 51 1 4   3 041 3 3   3 2 31 5 2   3 4 21 7 1       11 9 0       0
1 9   2 09  3 8   2 28  5 7   2 4 7  7 6   2 66  9 5   2 8 51 1 4   3 041 3 3   3 2 31 5 2   3 4 21 7 1   3 6 11 9 0       0
1 9   2 09  3 8   2 28  5 7   2 4 7  7 6   2 66  9 5   2 8 51 1 4   3 041 3 3   3 2 31 5 2   3 4 21 7 1   3 6 11 9 0   3 8 0
1 9             2 09         3 8             2 28         5 7             2 4 7         7 6             2 66         9 5  ...
1 9         2 09    9          3 8          2 28    8          5 7          2 4 7   7          7 6          2 66    6     ...
1 9         2 09    9          3 8          2 28    8          5 7          2 4 7   7          7 6          2 66    6     ...
1 9               2 09    3 99          3 8               2 28       8          5 7               2 4 7      7          7 ...
1 9             2 09    3 99         3 8             2 28    4 18         5 7             2 4 7      7         7 6        ...
1 9   2 09    3 99  3 8   2 28    4 18  5 7   2 4 7   4 3 7  7 6   2 66       6  9 5   2 8 5       51 1 4   3 04       41 ...
1 9   2 09    3 99  3 8   2 28    4 18  5 7   2 4 7   4 3 7  7 6   2 66    4 56  9 5   2 8 5       51 1 4   3 04       41 ...
1 9   2 09    3 99  3 8   2 28    4 18  5 7   2 4 7   4 3 7  7 6   2 66    4 56  9 5   2 8 5   4 7 51 1 4   3 04       41 ...
1 9   2 09    3 99  3 8   2 28    4 18  5 7   2 4 7   4 3 7  7 6   2 66    4 56  9 5   2 8 5   4 7 51 1 4   3 04    4 941 ...
1 9            2 09    3 99        3 8             2 28    4 18        5 7             2 4 7   4 3 7        7 6           ...
1 9   2 09    3 99  3 8   2 28    4 18  5 7   2 4 7   4 3 7  7 6   2 66    4 56  9 5   2 8 5   4 7 51 1 4   3 04    4 941 ...
1 9   2 09    3 99  3 8   2 28    4 18  5 7   2 4 7   4 3 7  7 6   2 66    4 56  9 5   2 8 5   4 7 51 1 4   3 04    4 941 ...
1 9               2 09          3 99With 8any times table,2 you look    3                     28       4 18for the pattern...
With any times table, you look       for the patterns in the numbers.dtcoulson@gmail.com
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19 times table in a hurry

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19 times table in a hurry

  1. 1. The 19 times table ...in a hurrydtcoulson@gmail.com
  2. 2. 1 9 Watch what happens when I write down the first few terms of the 19TT.
  3. 3. 1 93 Watch what happens when I write down the first few terms of the 19TT.
  4. 4. 1 93 8 Watch what happens when I write down the first few terms of the 19TT.
  5. 5. 1 93 85 Watch what happens when I write down the first few terms of the 19TT.
  6. 6. 1 93 85 7 Watch what happens when I write down the first few terms of the 19TT.
  7. 7. 1 93 85 7 Can you see what’s7 6 going on here?
  8. 8. 1 93 85 7 Can you see what’s7 6 going on here?9 5
  9. 9. 1 9 3 8 5 7 The left side is 7 6 growing by 2... 9 51 1 4
  10. 10. 1 9 3 8 5 7 ... and the right side is 7 6 counting backwards from nine. 9 51 1 41 3 3
  11. 11. 1 9 3 8 5 7 7 6 9 51 1 41 3 31 5 2
  12. 12. 1 9 3 8 5 7 7 6 9 51 1 41 3 31 5 21 7 1
  13. 13. 1 9 3 8 5 7 7 6 9 51 1 41 3 31 5 21 7 11 9 0
  14. 14. 1 9 3 8 5 7 7 6 9 51 1 41 3 31 5 2 Draw a line at the bottom....1 7 11 9 0
  15. 15. 1 9 9 3 8 8 5 7 7 7 6 6 9 5 51 1 4 41 3 3 31 5 2 2 ... and carry on.1 7 1 11 9 0 0
  16. 16. 1 9 2 09 3 8 8 5 7 7 7 6 6 9 5 51 1 4 41 3 3 31 5 2 2 The left number drops by 1....1 7 1 11 9 0 0
  17. 17. 1 9 2 09 3 8 2 28 5 7 7 7 6 6 9 5 51 1 4 41 3 3 31 5 2 2 ...and then grows by 2 each time.1 7 1 11 9 0 0
  18. 18. 1 9 2 09 3 8 2 28 5 7 2 4 7 7 6 6 9 5 51 1 4 41 3 3 31 5 2 2 ...and then grows by 2 each time.1 7 1 11 9 0 0
  19. 19. 1 9 2 09 3 8 2 28 5 7 2 4 7 7 6 2 66 9 5 51 1 4 41 3 3 31 5 2 2 ...and then grows by 2 each time.1 7 1 11 9 0 0
  20. 20. 1 9 2 09 3 8 2 28 5 7 2 4 7 7 6 2 66 9 5 2 8 51 1 4 41 3 3 31 5 2 21 7 1 11 9 0 0
  21. 21. 1 9 2 09 3 8 2 28 5 7 2 4 7 7 6 2 66 9 5 2 8 51 1 4 3 041 3 3 31 5 2 21 7 1 11 9 0 0
  22. 22. 1 9 2 09 3 8 2 28 5 7 2 4 7 7 6 2 66 9 5 2 8 51 1 4 3 041 3 3 3 2 31 5 2 21 7 1 11 9 0 0
  23. 23. 1 9 2 09 3 8 2 28 5 7 2 4 7 7 6 2 66 9 5 2 8 51 1 4 3 041 3 3 3 2 31 5 2 3 4 21 7 1 11 9 0 0
  24. 24. 1 9 2 09 3 8 2 28 5 7 2 4 7 7 6 2 66 9 5 2 8 51 1 4 3 041 3 3 3 2 31 5 2 3 4 21 7 1 3 6 11 9 0 0
  25. 25. 1 9 2 09 3 8 2 28 5 7 2 4 7 7 6 2 66 9 5 2 8 51 1 4 3 041 3 3 3 2 31 5 2 3 4 21 7 1 3 6 11 9 0 3 8 0
  26. 26. 1 9 2 09 3 8 2 28 5 7 2 4 7 7 6 2 66 9 5 2 8 5 1 1 4 3 04 1 3 3 3 2 3 1 5 2 3 4 2Draw another lineeach time7 you reach a 1 1 3 6 1zero.... 1 9 0 3 8 0
  27. 27. 1 9 2 09 9 3 8 2 28 8 5 7 2 4 7 7 7 6 2 66 6 9 5 2 8 5 5 1 1 4 3 04 4 1 3 3 3 2 3 3 1 5 2 3 4 2 2... and start again. 1 7 1 3 6 1 1 1 9 0 3 8 0 0
  28. 28. 1 9 2 09 9 3 8 2 28 8 5 7 2 4 7 7 7 6 2 66 6 9 5 2 8 5 5 1 1 4 3 04 4 1 3 3 3 2 3 3 1 5 2 3 4 2 2... and start again. 1 7 1 3 6 1 1 1 9 0 3 8 0 0
  29. 29. 1 9 2 09 3 99 3 8 2 28 8 5 7 2 4 7 7 7 6 2 66 6 9 5 2 8 5 5 1 1 4 3 04 4 1 3 3 3 2 3 3 1 5 2 3 4 2 2Remember that thenumber 7 1 1 drops by 1 3 6 1 1after crossing a line.... 1 9 0 3 8 0 0
  30. 30. 1 9 2 09 3 99 3 8 2 28 4 18 5 7 2 4 7 7 7 6 2 66 6 9 5 2 8 5 5 1 1 4 3 04 4 1 3 3 3 2 3 3 1 5 2 3 4 2 2... then grow by 2, asusual. 1 7 1 3 6 1 1 1 9 0 3 8 0 0
  31. 31. 1 9 2 09 3 99 3 8 2 28 4 18 5 7 2 4 7 4 3 7 7 6 2 66 6 9 5 2 8 5 51 1 4 3 04 41 3 3 3 2 3 31 5 2 3 4 2 21 7 1 3 6 1 11 9 0 3 8 0 0
  32. 32. 1 9 2 09 3 99 3 8 2 28 4 18 5 7 2 4 7 4 3 7 7 6 2 66 4 56 9 5 2 8 5 51 1 4 3 04 41 3 3 3 2 3 31 5 2 3 4 2 21 7 1 3 6 1 11 9 0 3 8 0 0
  33. 33. 1 9 2 09 3 99 3 8 2 28 4 18 5 7 2 4 7 4 3 7 7 6 2 66 4 56 9 5 2 8 5 4 7 51 1 4 3 04 41 3 3 3 2 3 31 5 2 3 4 2 21 7 1 3 6 1 11 9 0 3 8 0 0
  34. 34. 1 9 2 09 3 99 3 8 2 28 4 18 5 7 2 4 7 4 3 7 7 6 2 66 4 56 9 5 2 8 5 4 7 51 1 4 3 04 4 941 3 3 3 2 3 31 5 2 3 4 2 21 7 1 3 6 1 11 9 0 3 8 0 0
  35. 35. 1 9 2 09 3 99 3 8 2 28 4 18 5 7 2 4 7 4 3 7 7 6 2 66 4 56 9 5 2 8 5 4 7 5 1 1 4 3 04 4 94 1 3 3 3 2 3 5 1 3 1 5 2 3 4 2 2You can carry on likethis forever.1 1 7 3 6 1 1 1 9 0 3 8 0 0
  36. 36. 1 9 2 09 3 99 3 8 2 28 4 18 5 7 2 4 7 4 3 7 7 6 2 66 4 56 9 5 2 8 5 4 7 51 1 4 3 04 4 941 3 3 3 2 3 5 1 31 5 2 3 4 2 5 3 21 7 1 3 6 1 11 9 0 3 8 0 0
  37. 37. 1 9 2 09 3 99 3 8 2 28 4 18 5 7 2 4 7 4 3 7 7 6 2 66 4 56 9 5 2 8 5 4 7 51 1 4 3 04 4 941 3 3 3 2 3 5 1 31 5 2 3 4 2 5 3 21 7 1 3 6 1 5 5 11 9 0 3 8 0 0
  38. 38. 1 9 2 09 3 99With 8any times table,2 you look 3 28 4 18for the patterns in the numbers. 5 7 2 4 7 4 3 7 7 6 2 66 4 56 9 5 2 8 5 4 7 5 1 1 4 3 04 4 94 1 3 3 3 2 3 5 1 3 1 5 2 3 4 2 5 3 2 1 7 1 3 6 1 5 5 11 9 0 3 8 0 5 7 0
  39. 39. With any times table, you look for the patterns in the numbers.dtcoulson@gmail.com

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