Lesson 65 Decimal Parts Of A Meter Math Worksheet - Saxon Math Intermediate 5 (Page 3 of 6) in pdf

Lesson 65 Decimal Parts Of A Meter Math Worksheet - Saxon Math Intermediate 5 Page 3

decimeter

is one tenth of a meter. A

centimeter

is one tenth

of a decimeter and one hundredth of a meter. A

millimeter

one tenth of a centimeter and one thousandth of a meter. These

fractional parts of a meter can represent the first three decimal

places.

meter

decimeter centimeter

millimeter

Example 1

Forty centimeters is how many decimeters?

Ten centimeters equals one decimeter, so 40 centimeters equals

4 decimeters.

How many millimeters equal 4 decimeters? Explain how

Analyze

you know.

400 mm; 4 dm

40 cm and 40 cm

400 mm

Example 2

Eduardo measured his height using a meterstick. He was

1 meter plus 35 centimeters tall. What was Eduardo’s height

in meters?

Since 10 centimeters equals 1 decimeter, we can think of

35 centimeters as 3 decimeters plus 5 centimeters. So Eduardo’s

height was 1 meter plus 3 decimeters plus 5 centimeters. We

can use a decimal number to write Eduardo’s height in meters.

Eduardo’s height is 1.35 meters.

Activity 1

Decimal Parts of a Meter

Materials needed:

• Lesson Activities 21 and 22

• scissors

• glue or tape

Cut and paste decimeter, centimeter, and millimeter strips from

Lesson Activity 21 onto Lesson Activity 22 to show decimal

parts of a meter. Use the models to compare, convert, and add

the lengths specified on Lesson Activity 22.

414

Saxon Math Intermediate 5

Lesson 65 Decimal Parts Of A Meter Math Worksheet - Saxon Math Intermediate 5 Page 3