What is the difference between 15.6 and 7.4?

The difference between 15.6 and 7.4 is 8.2.

To find the difference between two numbers, you subtract the smaller number from the larger number. In this case, you subtract 7.4 from 15.6. When you set up the subtraction, it looks like this: 15.6 - 7.4.

First, align the decimal points to ensure accuracy. Then, subtract the digits in each column starting from the rightmost digit. Here’s the step-by-step process:

1. Subtract the digits in the tenths place: 6 - 4 = 2.
2. Subtract the digits in the units place: 15 - 7 = 8.

So, 15.6 - 7.4 = 8.2.

This method works for any pair of decimal numbers. Always remember to line up the decimal points and subtract each column of digits separately, starting from the right. If necessary, you can borrow from the next column to the left, just like in whole number subtraction. This ensures that your answer is accurate and precise.