Measurement

Metric mixed units

Convert 7 cm 1 mm to mm

Step 1:	Convert 7 cm to mm. Multiply 7x10=70 7 cm = 70 mm
Step 2:	Add this to the millimetre you already have: 7 cm 1 mm = 70 mm + 1 mm 7 cm 1 mm = 71 mm

Convert 8 cm 9 mm to cm

Step 1:	Convert 9 mm to cm. Divide 9x10=0.9 9 mm = 0.9 cm
Step 2:	Add this to the centimetres you already have: 8 cm 9 mm = 8 cm + 0.9 cm 8 cm 9 mm = 8.9 cm