This question is requesting you write the number in scientific notation. An easy way to convert a number to scientific notation is by counting the places you move the decimal from left to right or right to left. Because 240,000 is a whole number you will start by moving the decimal from the end of the number to the left. The decimal must land between the first and second number. In this problem the decimal would move 5 places. You would rewrite the beginning of the number as 2.40. Because you moved the decimal five times, five will be the exponent for the base ten. Your final answer will be 2.40 x 10^5.
