Length unit:

The international unit is "meter" (symbol "m"), and the most common ones are kilometer (km), meter (m), decimeter (dm), centimeter (cm) and millimeter (mm). Perceptual cognitive nails are one millimeter thick, one centimeter long, one centimeter wide in the palm and one meter long with open arms. ?

Conversion formula: 1 km = 1 000m (m),1m (m)= 10 decimeter (dm). 1 meter (m)= 10 decimeter (dm)= 100 cm (cm)= 1000 mm (mm) 1 decimeter (dm)= 10 cm (mm)

Time unit:

1 century = 100 1 year =1February.

1 day =24 hours 1 hour =60 minutes.

1 minute =60 seconds 1 hour =3600 seconds.

Renminbi unit:

The unit of RMB is yuan, and the unit of RMB auxiliary currency is jiao and fen. There is a decimal relationship between units. The currency symbol of RMB is RMB. ?

Angle of conversion formula: one tenth. Points: 1% of a dollar. 1 yuan = 10 angle 1 angle = 10 point 1 yuan = 100 point.