Estimating and Measuring lengths

Front

What is a ruler used for?

Back

A ruler is used to measure lengths.

Front

How do you read a ruler?

Back

You look at the number where the end of the object lines up.

Front

What is the measurement of an object that is 2 1/2 inches long?

Back

2 1/2 in.

Front

What is the measurement of an object that is 5 inches long?

Back

5 in.

Front

What tool do you use to measure a pencil?

Back

Ruler

Front

What is the measurement of an object that is 2 inches long?

Back

2 in.

Front

How many centimeters are in 1 inch?

Back

1 inch is approximately 2.54 centimeters.

Front

What is the measurement of a green rectangle that is 5 cm long?

Back

5 cm.

Front

If an object measures 4 inches, what is its length in inches?

Back

4 in.

Front

What is the smallest unit of length commonly used?

Back

Millimeter (mm).