How many different ways are there to make ten?

Answer 1

If you mean "expressions that result in the number ten", there are infinitely many. For example, you can add:

0 + 10

1 + 9

2 + 8

1.5 + 8.5

-1 + 11

etc.

There you already have an infinity (an UNCOUNTABLE infinity) of options.

Or you can subtract:

10 - 0

11 - 1

12 - 2

etc.

Once again, you have an infinity of options; an uncountable infinity if you accept any number and not just integers.