40 decimetres = 4,000 millimetres
There are 100 millimetres in one decimetre. Therefore, 40 decimetres is equal to 40 x 100 = 4000 millimetres.
1003 millimetres is 100.3 centimetre and 10.03 decimetres
There are 100 millimetres in one decimetre. Therefore, 506 millimetres is equal to 506/100 = 5.06 decimetres.
There are 100 millimetres in one decimetre. Therefore, 5000 millimetres is equal to 5000/100 = 50 decimetres.
There are 100 millimetres in one decimetre. Therefore, 88 millimetres is equal to 88/100 = 0.88 decimetres.
There are 100 millimetres in one decimetre. Therefore, 7 millimetres is equal to 7/100 = 0.07 decimetres.
There are 100 millimetres in one decimetre. Therefore, 400 millimetres is equal to 400/100 = 4 decimetres.
There are 100 millimetres in one decimetre. Therefore, 12 millimetres is equal to 12/100 = 0.12 decimetres.
There are 100 millimetres in one decimetre. Therefore, 540 millimetres is equal to 540/100 = 5.4 decimetres.
There are 100 millimetres in one metre. Therefore, 8400 millimetres is equal to 8400/100 = 84 decimetres.
There are 100 millimetres in one decimetre. therefore, 200 millimetres is equal to 200/100 = 2 decimetres.