This video uses an example of tablet screen sizes and compares lengths using a number line. The video compares lengths in centimeters, but we can use the same method to compare lengths in inches.

Apply

question 1

$Glen$ is $165$165 cm tall. $Valentina$ is $144$144 cm tall.

Who is taller?

$Valentina$
A
$Glen$
B

Learn

This video shows how we can compare numbers, if the unit of length are the same, to order by length.

Apply

question 2

A $boat$ is $19$19 meters long, a $shark$ is $6$6 meters long, a dolphin is $3$3 meters long, a $ship$ is $25$25 meters long and a $whale$ is $14$14 meters long.

Choose the list that puts the items in order from shortest to longest.
Dolphin, $Whale$ , $Boat$ , $Shark$ , $Ship$
A
$Whale$ , Dolphin, $Ship$ , $Shark$ , $Boat$
B
Dolphin, Shark, Whale, Boat, Ship
C
$Shark$ , Dolphin, $Ship$ , $Whale$ , $Boat$
D

Remember!

When you compare lengths, make sure your values use the same units of measurement. For example, all lengths are in inches.

9.08 Order and compare lengths

Are you ready?

Learn

Apply

question 1

Learn

Apply

question 2

What is Mathspace

About Mathspace