In a world problem, which quantity describes how much the amount changes?

In a world problem, which quantity describes how much the amount changes?

• A. Start quantity
• B. Change quantity
• C. Result quantity
• D. Beginning quantity

Answer: (B)

The change quantity describes how much the amount changes. In these problems you start with an initial amount and then end with a final amount after some change. The change quantity is the difference between the final amount and the starting amount, showing how much was gained or lost. For example, if you start with 4 dollars and end with 9 dollars, the change is 9 minus 4, which equals 5 dollars—a gain of 5. If you end with 2 dollars, the change is 2 minus 4, which equals -2 dollars, a decrease of 2. The starting quantity and the final (result) quantity tell you where you began and where you ended, but the change quantity tells you how much the amount actually changed.

The change quantity describes how much the amount changes. In these problems you start with an initial amount and then end with a final amount after some change. The change quantity is the difference between the final amount and the starting amount, showing how much was gained or lost. For example, if you start with 4 dollars and end with 9 dollars, the change is 9 minus 4, which equals 5 dollars—a gain of 5. If you end with 2 dollars, the change is 2 minus 4, which equals -2 dollars, a decrease of 2. The starting quantity and the final (result) quantity tell you where you began and where you ended, but the change quantity tells you how much the amount actually changed.