These are also called challenge number/code.
You have to be at least over the level of grade 4 mathematics to succeed to live.
Example 1: Addition of 9.
A: 4
B: 5
Example 2: Subtraction of 7.
A: 10
B: 3
Example 3: Odd numbers under 10.
A: 3
B: 1
Last edited by Shirley; July 19th, 2009 at 16:05..
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