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Simply:

Divide 999 by 2 = 499.5, then some common sense tells us 499 & 500.

Algebra:

[x] + [x + 1] = 999 {where x = first # & x+1 = the consecutive number}

2x + 1 = 999 {subtract 1 from both sides}

2x = 998

x = 499

& x +1 = 500

Math is magical.

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15y ago

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