80 mm = 8 cm
8 mm is 0.8 cm
8 mm = 0.8 cm.
80
8 mm (1 cm = 10 mm)
88.
10 mm = 1.0 cm 8 mm = 0.8 cm
Its 10 mm for every cm so 10 x 8 equals 80 mm.
1cm=10mm, so 0.8 cm=8mm.
It might mean "9 cm 8 mm"
80 mm equals 8 cm
7 cm 8 mm - 6 cm = 1 cm 8 mm = 1.8 cm or 18 mm