Addition: 6×7

The result of adding 6 and 7 is 13.

However, it seems there might be a misunderstanding in your question. The expression “6×7” typically represents multiplication, not addition. If you meant to ask about the addition of 6 and 7, the correct answer is 13. If you intended to ask about multiplication, the product of 6 and 7 is 42.

If you have any specific references or further details, please let me know!