What is 90 - 45?

To determine the value of 90 - 45, you start with the number 90 and subtract 45 from it.

When you break it down, you can visualize this as taking 45 away from 90. This is a straightforward subtraction problem. If you count backward from 90, you can group the numbers to simplify your calculations.

If you take away 40 from 90, you are left with 50. Then, subtracting the remaining 5 from 50 results in 45. Therefore, 90 - 45 equals 45, which means the total amount left is indeed 45.

This confirms that the correct answer, 45, is the result of the subtraction, leading us to conclude that the subtraction operation was executed correctly. The answer of 40 does not represent the subtraction of these two specific numbers accurately.