. | :multiples of 5 : | :both : even numbers:|
| 5 | 10 | | 2. 22. |
| 15 | 20 | | 4. 28.|
| 25 | 30 | | 6. 34.|
| .............. 35 |. 40 | | 18 8. |
| 14. |
| 12. 26 |
| 16. 24. 32.|
|36. 38. |
As you can tell not every number between 1-40 is included on my venn diagram because the numbers :1,3,7,9,11,13,17,19,21,23,27,29,31,33,37and 39 all have some simmilarities including: They are all odd numbers and neither of them are in the 5 times table.
Something that made it easier for me to work out what 5 times tables are odd is any number with unit digit of 5 is odd because if you halve 5 it goes into decimals.