Final answer:
To divide 25,000 by 10 to the power of 5, Roland should move the decimal point 5 places to the left, resulting in the answer 0.25. This is a quick method of dividing by powers of ten by counting the zeros.
Step-by-step explanation:
Roland wants to divide 25,000 by 10 to the power of 5. To find the solution, he should move the decimal point 5 places to the left. When dividing by powers of 10, one can use the shortcut of counting the zeros in the power of 10 and then moving the decimal point that same number of places to the left. For example, dividing by 105 means there are 5 zeros, so the decimal point moves 5 places to the left, changing 25,000 to 0.25.
It's important to note that the number of places that the decimal point moves is the same as the number of zeros in the power of ten. Knowing this helps with performing quick calculations without the need for long division or a calculator.