The Jinx Calculator
To help you find out if this puzzle will work for all numbers, we will use a special spreadsheet “calculator."
Here's what your Jinx Calculator will look when you open it. Notice that 6 was the chosen number and entered in cell B1.
The spreadsheet then
quickly did all the calculations and the answer was once
again 13 - the unlucky number. Can you find a number that
will make the puzzle not end in 13 (and not jinx you?) Use
the Excel version of the Jinx
Calculator to help you.
different kinds of numbers not just whole
numbers. Like these: 2.5, -56, 3000, 999999999,
.000005. Fractions can also be tried. For example if
you try 1/2, you enter =1/2 into the cell.
of your interesting examples of numbers that you used
page and describe the results.
Is it possible to try all numbers on the spreadsheet? If not, what are some numbers we can't use in a spreadsheet?