A pencil is 7 centimetres long. Enter its length in millimetres.
Respuesta correcta
70 · Unidades aceptadas: millimetres · mm
Explicación
Each centimetre is divided into ten millimetres, so seven centimetres hold seven of those tens. Entering 700 applies the hundred-step that belongs between metres and centimetres and stretches a pencil to the length of a table.