2. \( 2.13 \times 2.05= \)

Did you know that the multiplication of decimal numbers like \(2.13\) and \(2.05\) can be visualized as scaling? If you think about it, multiplying them is like finding the area of a rectangle where one side is \(2.13\) and the other side is \(2.05\). This gives us a tangible picture of how we use decimals in everyday measurements, such as in cooking or construction! When calculating \(2.13 \times 2.05\), it's easy to make a mistake with decimal placement. A common pitfall is forgetting to count the total number of decimal places in both numbers. Here, there are four decimal places in total. After performing the multiplication, don’t forget to adjust your final answer by moving the decimal point four places to the left! The result is \(4.3945\).