As Vox asks in his e-mail to me, any math teacher, engineer, physicist, card-trick playing priest friends could explain it that would be really great!
USING A CALCULATOR
1. KEY IN THE FIRST THREE DIGITS OF YOUR PHONE NUMBER (NOT THE AREA CODE)
2.MULTIPLY BY 80
4.MULTIPLY BY 250
5.ADD THE LAST 4 DIGITS OF YOUR PHONE NUMBER
6.ADD THE LAST 4 DIGITS OF YOUR PHONE NUMBER AGAIN.
7. SUBTRACT 250
8. DIVIDE NUMBER BY 2
DO YOU RECOGNISE THE NUMBER?
M/N to Voxcantor who e-mailed this to me. I find this apropos since elder will be undergoing EQAO provincial testing the last week in May.