What is the sum of 0.75 and 0.25?

The sum of 0.75 and 0.25 can be calculated by aligning the numbers based on their decimal points and adding them. Starting with the tenths place, you add the tenths from both numbers: 0.75 has 7 tenths, and 0.25 has 2 tenths. Adding these together gives you 9 tenths.

Next, proceed to the hundredths place: 0.75 has 5 hundredths and 0.25 has 5 hundredths as well. When you add those, you maintain 0 in the hundredths place since 5 + 5 equals 10, which will carry over to the tenths place.

Now, combining the values together, you take the carried-over 1 and add it to the 9 tenths, which results in 10 tenths, equivalent to 1 whole. This gives you a total sum of 1.0.

Thus, the correct answer represents the mathematical operation accurately, confirming that the sum of 0.75 and 0.25 is indeed 1.0.