Customary and Metric Measurements

Metric and Customary Units of Length

Length

1 millimeter (mm)

It is very small.

1 centimeter (cm)

1 cm = 10 mm

1 meter (m)

1 m = 100 cm

1 m = 1000 mm

1 kilometer (km)

1 km = 1000 m

Multiple Choice

The height of a Ferris wheel

• 7 m

• 7,000 m

• 70 m

• 1 km

Multiple Choice

The length of a carrot

• 15 cm

• 15 mm

• 0.5 m

• 150 cm

Multiple Choice

The length of a crayon

• 900 mm

• 9 mm

• 90 cm

• 90 mm

Multiple Choice

The length of a rattlesnake

• 16 cm

• 1.6 m

• 1.6 km

• 16 m

Multiple Choice

The height of a two-story house

• 700 cm

• 70 m

• 700 mm

• 0.7 m

1 centimeter (cm) = 10 millimeters (mm)

1 meter (m) = 100 centimeters (cm)

1 kilometer (km) = 1,000 meters (m)

Dan ran 2 km. How many meters did he run?

• 2 km x 1,000

• 2 x 1,000 = 2,000

• Dan ran 2,000 m.

• It is important to include the unit of measurement as a part of the answer.

• 2,000 m

Sue has 1,500 cm of ribbon. How many meters of ribbon does Sue have?

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Inch (in)

A small unit of cutomary measurement.

Foot (ft)

1 foot = 12 inches

Yard (yd)

1 yard = 3 feet

Multiple Select

Choose all that would be about an inch.

Multiple Select

Choose all that would be about a foot.

Multiple Select

Choose all that would be about a yard.

Mia has 7 yards of ribbon to make hairbows. She needs 8 inches per hairbow. How many hairbows can she make from the ribbon she has?

• 1st - Determine the number of feet of ribbon.

• 7 yds x 3 = 21 ft

• 2nd - Determine how many inches of ribbon.

• 21 ft x 12 = 252 in

• 3rd - Determine how many hairbows she can make.

• 252 in ÷ 8 = 31 R4

• Mia can make 31 hairbows.

Tim wants to make a rope swing. He needs 10 yds of rope to make the swing. He went to Lowes and the rope was sold in rolls of 360 in. How many rolls of rope will he need to buy to have enough rope for his swing?

• 1st - Determine how many feet of rope is in one roll.

• 360 in ÷ 12 = 30 ft

• 2nd - Determine how many yards of rope is in one roll.

• 30 ft ÷ 3 = 10 yds

• Yes, one roll of rope will be enough to make a rope swing.

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