My Prediction:

The total of
the numbers
will be 


Select any month of the calendar.

Click & drag the red square in such a position that it includes nine dates.



What is the smallest number in the red square?

1   2   3   4   5   6   7   8   9   10   11   12   13   14   15

Add up the numbers in the red square then remove my prediction from the envelope at the top of the page.