Number Crunching

1800 milligrams = ___ grams

• 1.8
• 18
• 180
• .18

1000 g= ______ kilogram(s)

• 1
• 10
• 100
• 1000

convert 650 m to km

• 6.5
• 0.65
• 65
• 0.065

What is the SI standard unit for mass?

• stone 

• pounds

• grams

• kilograms

71 km = ___ m

• 71
• 710
• 7,100
• 71,000

A bicycle has a speed of 6 m/s. What is its speed in km/h?  (1 km=1000 m)

• 21.6 km/h 

• 16.67 km/h

• 2.16 km/h

• 1.67 km/h

How many minutes are in a year?

• I can't count that high.

• 525,960min

• 52,600min

• 31,536,000min

convert 9 km to mm

• 900,000

• 9,000,000

• 9,000

• 90,000

285 kg = ____ g

• 285,000

• 285

• 2,850

• 28,500

The density of a substance is its mass divided by its volume. Give the metric unit for density.

• g/cm

• kg/cm²   

• kg/m³ 

• kg/m