A rectangular board is 1.2 meters long and 0.75 meters wide. What is the area of the board in square millimeters? Do not round your answer.

To find the area of the rectangular board, you can multiply the length by the width. So, 1.2 meters multiplied by 0.75 meters gives you an area of 0.9 square meters. To convert this to square millimeters, you need to remember that 1 square meter is equal to 1,000,000 square millimeters. Therefore, 0.9 square meters is equal to 0.9 * 1,000,000 = 900,000 square millimeters. Area = 900,000 square millimeters. Here's a fun fact: The metric system is designed to make calculations easier, and converting between units like meters to millimeters is straightforward because it uses powers of ten. So next time you measure something, just think of how easy it is to switch units! If you're working with areas, always double-check your conversions! A common mistake is forgetting to convert both dimensions when calculating the area, which can lead to incorrect units. Always keep an eye out for unit conversions in your calculations!