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An infinite number of ways.

5+1, 6*1, 6/1, 7-1

Then similar forms with 2, 3, 4, etc

And then with 0.1, 0.2, 0.3, ...

and 0.01, 0.02, 0.03, ...

not forgtting 1.1, 1.01, 1.001,... 2.1, 2.01,

and, finally, the irrationals eg sqrt(2)*sqrt(18), sqrt(3)*sqrt(12)

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14y ago

What else can I help you with?