Find a friend, paper, pencil or calculator.

Choose any number
Example : 69

Add   20
69 + 20 = 99

Add 50
99 + 50 = 149

Subtract 10
149 - 10  = 139

Add 100
139 + 100 = 249

Add 20
249 + 20 = 259

Subtract 80
249 - 80  =  169

Subtract your original number
169 - 69 = 100

The answer will always be one hundred.

Go out and impress someone!

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