Units
Estimate
Which Unit?
Guess the length
Measure
100

CM

centimeters

100

About how many inches is an eraser

2-3 inches

100

To measure an eraser?

Centimeters or inches

100

Is a pencil about 5 inches or 5 yards?

5 inches

100

Stapler in centimeters

18 centimeters

200
IN

inches

200

About how many inches is a pencil

5-6 inches

200

To measure the distance to the principals office?

A yard or a meter

200

Is a desk about 1 yard or 20 yards?

1 yard

200
Water bottle in inches

8 inches

300

FT

feet or foot

300
About how many feet is our math book from top to bottom

1 foot

300

To measure the length of the room

Yards or meters

300

Is a book about 1 foot or 12 feet?

1 foot

300

Marker in inches

6 inches

400

M

meters

400

About how many yards is the teacher's desk?

1 yard
400

To measure a pencil

Inches or centimeters

400

Is an eraser about 6 centimeters or 1 meter?

6 centimeters
400

Paperclip in centimeters

5 centimeters

500

YD

Yards

500

About how many centimeters is the stapler?

17-18 centimeters

500

To measure a bug

Centimeters

500

Is a piece of paper about 10 inches or 10 feet?

10 inches

500

Desk in inches

24 inches

M
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