The two conversions you need will be -
1 dm (decimeter) = 10 cm (centimeter)
1 cm (centimeter) = 10 mm (millimeter)
First, we will convert 2.99 dm to cm.
2.99 dm x 10 cm/dm = 29.9 cm
Now, we will convert 29.9 cm to mm.
29.9 cm x 10 mm/cm = 299 mm
So, 2.99 dm = 299 mm
3000mm equals 30dm. (divide mm by 100 to get decimeters)
30 decimeters is equal to 3000 millimeters.
2000 millimetres
0.01 decimetres = 1 mm.
1000mm 1/1000 mm
1 millimeter = 0.01 decimeters
250 mm = 2.5 decimeters.
1 dm equal 100 mm.
990 millimeters is 9.9 decimeters.
299 millimeters = 11.77 inches.
By unit of length and distance and conversion ,we can say that 1 dm=100 mm 20.6 dm=206 mm
600 mm