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Infinitely many.

1 + 1 + 1 + 19

.1 + .1 + .1 + 21.7

.01 + .01 +.01 + 21.97

And so on. And all these are with three of the numbers being the same.

There are also combinations where some numbers are irrational -infinite, non recurring decimals.

Then there are combinations with some of the numbers being negative.

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12y ago

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