150 cm 2 is an area unit, which is usually used to measure small areas, such as paper size and screen size of electronic equipment. Square decimeter is another unit of area, which is usually used to measure medium area, such as room area, tourist attractions area, square area and so on. So we need to convert 150 square centimeters into square decimeters for comparison.

1 square meter equals 10.76 square foot, 1 square foot equals 100 square centimeter, 1 square decimeter equals 0.0 1 square meter. So 150 square centimeter can be converted into square decimeter: 1 square meter = 100 square decimeter; 1 square foot = 100 square centimeter; 150 square centimeter = 1.5 square foot =0.0 15 square meter = 1.5 square decimeter. Therefore, 150 square centimeter is equal to 1.5 square decimeter.

Matters needing attention in unit conversion

1. Determine the required conversion relationship: determine the required conversion relationship before company conversion. This can be obtained by consulting reference materials, using unit converters or performing simple mathematical calculations.

2. Ensure company matching: When changing companies, ensure that the companies used match. For example, in length conversion, if the original unit is kilometers, the converted unit should be meters. Mismatched units will lead to incorrect conversion results.

3. Ensure the correct conversion factor: It is very important to use the correct conversion factor when converting units. The conversion coefficient represents the proportional relationship between two units. Making sure to use accurate conversion coefficient can avoid conversion error.

4. Pay attention to the accuracy of units: when converting units, pay attention to the accuracy of units. If the accuracy of the original data is two decimal places, the converted result should also maintain the same accuracy. Incorrect precision may lead to deviation of results.