3,6,10,5,7 total: 2 use each number once (and only once) to make the given total. write out your combinations, being sure to include parentheses where needed to show the order of operations.

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents