Final answer:
The correct expression for '10 more than a number' is '10 + n', which simply adds 10 to the variable 'n'. This is represented by Option B, distinguishing it from multiplication, division, or subtraction expressions.
Step-by-step explanation:
The expression for '10 more than a number' is represented by 10 + n. Option B is the correct choice. The variable 'n' stands for the number, and by adding 10 to it, we increase the value of 'n' by 10.
In contrast to the other options listed, Option A (10n) represents ten times a number, Option C (10/n) represents the division of 10 by a number, and Option D (10-n) means 10 minus a number.
It is important to understand the difference between these operations and how they are represented in algebraic expressions.