Understanding the Metric System

Bob Wells explains how to read a metric ruler, focusing on centimeters and millimeters. He demonstrates how to convert between these units using simple arithmetic and provides practical exercises for viewers to practice. The video also covers larger units like meters and offers challenges to reinforce learning. The metric system's simplicity, based on multiples of ten, is highlighted throughout.

What is the width of a finger likely to be in millimeters?

• 20-30 mm

• 10-20 mm

• 30-40 mm

• 5-10 mm

How many millimeters make up one centimeter?

• 15

• 20

• 10

• 5

If an object measures 15 millimeters, how many centimeters is that?

• 1.5 cm

• 15 cm

• 0.15 cm

• 150 cm

How would you convert 44 millimeters to centimeters?

• 4.4 cm

• 44 cm

• 440 cm

• 0.44 cm

What is the width of a hand if it measures 8.3 centimeters in millimeters?

• 0.83 mm

• 830 mm

• 8.3 mm

• 83 mm

How many centimeters are there in a meter?

• 10000

• 1000

• 100

• 10

What is the French word for 1000, which is part of the metric system's origin?

• Cent

• Mille

• Dix

• Centime

If a measurement reads 0.55 meters, how many centimeters is that?

• 0.55 cm

• 55 cm

• 5.5 cm

• 550 cm

Convert 0.81 meters to centimeters.

• 81 cm

• 0.81 cm

• 8.1 cm

• 810 cm

How many millimeters are in 0.81 meters?

• 81 mm

• 810 mm

• 8100 mm

• 81,000 mm