How do you write 25 in scientific notation?

To express the number 25 in scientific notation, you first need to identify a number between 1 and 10. In this case, you can write 25 as 2.5.

Next, you need to determine how many places you moved the decimal point to convert 25 into 2.5. The decimal point is moved one place to the left. Thus, we need to multiply 2.5 by 10 raised to the power of 1 (because we moved the decimal one place).

Putting it all together, 25 in scientific notation is written as:

2.5 × 10¹