Once a child for school had to print a field of 10x10 c squares of 1 cm. I create a table in Word, determine the size of the cell in the properties, print. I measure the print with an ambulance. Not 100 mm, but a little more. I think the width of the boundaries of the cells is not taken into account, etc., I try to figure out how to fit. In the course of the matter, I water all the words of Bill Gates... Then I look closely at the school line itself. Oh the Chinese. I find an old Soviet - a 100 mm truss in a truss. Bill Gates is not to blame.