To Construct a Black Box
CLICK HERE
To Test Yourself
Click on a level. The higher the number, the harder the problem.
Level 1
Level 2
Level 3
Level 4
Level 5
Level 6
Level 7
Level 8
Level 9
Level 10 (tricky?)
Level 11 (larger numbers)
Level 12 (larger numbers)
Two Numbers as Input
Level 5 (easy)
Level 6
Level 8
Level 10
Level 13
Level 15
Level 17
Level 20
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