A line plot shows data with an X above a number line for each measurement. One sheet has students draw Xs for 12 pencil lengths, and another asks which worm length is most common and how far apart the longest and shortest are.

Do students need a ruler for these sheets?

Most measuring pages print a ruler under each object, so print at 100 percent, actual size, and the printed ruler matches a real one. The page where students draw lines of a given length needs a real inch ruler.

Is there an answer key for each worksheet?

Yes. All eight measuring and comparing lengths sheets have an answer key.

What measurement concepts are covered in third grade?

Third graders measure and estimate lengths in standard units (CCSS 3.MD.B.4), use rulers to measure to the nearest quarter inch, and solve perimeter problems for polygons (3.MD.D.8). They also measure liquid volume and mass in grams, kilograms, and liters (3.MD.A.2) and use multiplication and addition to solve measurement word problems.

How do you help third graders measure accurately with a ruler?

Teach students to align the zero mark (not the edge of the ruler) with one end of the object. Practice measuring to the nearest inch, then half inch, then quarter inch in sequence. Discuss estimation first: about how many inches is this pencil? Compare the estimate to the measurement. Worksheets with pictures of objects on rulers provide practice without requiring physical rulers.

What is the difference between perimeter and area in third grade?

Perimeter is the total distance around a shape (add all side lengths); area is the amount of surface inside a shape (CCSS 3.MD.C.5-7 introduces area, 3.MD.D.8 covers perimeter). Confusion between the two is common. A useful anchor: perimeter is the fence around a yard (you walk along the outside); area is the carpet inside the room (it covers the floor). Both concepts use multiplication in third grade.

3rd Grade Measuring and Comparing Lengths Worksheets

Ages 8-9 · Free previews · Print-ready PDFs

Written by Adi Ackerman, Head Teacher

Free printable measuring and comparing lengths worksheets for 3rd grade students (Ages 8-9). Aligned to Common Core standards. Ready to print.

3rd Grade Math Measurement Measuring and comparing lengths Clear All

$Draw Lines to the Nearest Quarter Inch - 3rd Grade Measurement worksheet preview$

Draw Lines to the Nearest Quarter Inch

Grade3rd Grade

TopicMeasurement

$How Much Longer? Length Word Problems in Centimeters - 3rd Grade Measurement worksheet preview$

How Much Longer? Length Word Problems in Centimeters

Grade3rd Grade

TopicMeasurement

$Longest to Shortest, Measure and Order in Centimeters - 3rd Grade Measurement worksheet preview$

Longest to Shortest, Measure and Order in Centimeters

Grade3rd Grade

TopicMeasurement

$Make a Line Plot of Pencil Lengths - 3rd Grade Measurement worksheet preview$

Make a Line Plot of Pencil Lengths

Grade3rd Grade

TopicMeasurement

$Measure Pencils to the Nearest Quarter Inch and Compare - 3rd Grade Measurement worksheet preview$

Measure Pencils to the Nearest Quarter Inch and Compare

Grade3rd Grade

TopicMeasurement

$Measure Ribbons in Centimeters and Find the Difference - 3rd Grade Measurement worksheet preview$

Measure Ribbons in Centimeters and Find the Difference

Grade3rd Grade

TopicMeasurement

$Measure Two Lines and Find How Much Longer - 3rd Grade Measurement worksheet preview$

Measure Two Lines and Find How Much Longer

Grade3rd Grade

TopicMeasurement

$Read a Line Plot of Worm Lengths - 3rd Grade Measurement worksheet preview$

Read a Line Plot of Worm Lengths

Grade3rd Grade

TopicMeasurement

More measurement worksheets

Explore all of our 3rd grade measurement worksheets, covering units of length (inches, feet, yards, miles), metric units of length (centimeters, meters and kilometers), measuring lengths to the nearest quarter inch, measuring lengths to the nearest millimeter, and more.

Units of length (inches, feet, yards, miles)Metric units of length (centimeters, meters and kilometers)Measuring lengths to the nearest quarter inch Measuring lengths to the nearest millimeter Convert between inches, feet, and yards Convert between inches, feet, and yards (harder)Convert between centimeters and millimeters (no decimals)Convert between centimeters and millimeters (with decimals)Convert between meters, centimeters and millimeters Reading and using a scale Units of weight (ounces and pounds)Metric units of weight (grams and kilograms)Convert ounces and pounds Convert ounces and pounds (harder)Convert kilograms & grams Reading a measuring cup Units of capacity (cups, pints, quarts and gallons)Metric units of capacity (milliliters and liters)Convert cups, pints, quarts, and gallons Convert cups, pints, quarts, and gallons (harder)Convert liters & milliliters Reading a thermometer (Fahrenheit & Celsius)Weather and temperature Length word problems Mass and weight word problems Volume and capacity word problems Units of measurement

Frequently Asked Questions

Line up the end of the object with the 0 mark on the ruler, not the edge. Find the mark closest to the other end. Each inch is split into four quarters, so a pencil might measure 4¼, 4½ or 4¾ inches.

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3rd Grade Measuring and Comparing Lengths Worksheets

Draw Lines to the Nearest Quarter Inch

How Much Longer? Length Word Problems in Centimeters

Longest to Shortest, Measure and Order in Centimeters

Make a Line Plot of Pencil Lengths

Measure Pencils to the Nearest Quarter Inch and Compare

Measure Ribbons in Centimeters and Find the Difference

Measure Two Lines and Find How Much Longer

Read a Line Plot of Worm Lengths

More measurement worksheets

Frequently Asked Questions

How do you measure to the nearest quarter inch?

What is a line plot?

Do students need a ruler for these sheets?

Is there an answer key for each worksheet?

What measurement concepts are covered in third grade?

How do you help third graders measure accurately with a ruler?

What is the difference between perimeter and area in third grade?

What is ClassWeekly?