How many 140mm blocks are there per m2?

To calculate the number of 140mm blocks per square meter, we first need to convert the dimensions to the same unit. Since 1 meter is equal to 1000mm, we can calculate the area of a square meter in square millimeters (1000mm x 1000mm). Next, we divide the area of a square meter by the area of a single 140mm block (140mm x 140mm) to determine how many blocks can fit in a square meter. This calculation would yield the number of 140mm blocks per square meter.