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9.03 Order and compare mass

Lesson

Are you ready?

We need to remember how to order numbers to help us in this lesson. Let's try this problem to practice. 

Order these numbers from smallest to largest.

  1. $89,98,88$89,98,88

    $\editable{},\editable{},\editable{}$,,

  2. $759,795,579$759,795,579

    $\editable{},\editable{},\editable{}$,,

Learn

We could weigh each object in a group to put them in order but we could also use balance scales. We can work out which object is heavier or lighter out of two objects, then compare it to another object.

In the video, we will use the mass to compare objects, as well as balance scales.

Apply

Question 1

We want to order these animals from lightest to heaviest.

Cockatoo Sparrow Pigeon
  1. Which of these animals is the lightest?

    Cockatoo

    A

    Sparrow

    B

    Pigeon

    C
  2. Which of these animals is the second lightest?

    Cockatoo

    A

    Sparrow

    B

    Pigeon

    C
  3. Which of these animals is the heaviest?

    Cockatoo

    A

    Sparrow

    B

    Pigeon

    C

question 2

We want to order these animals according to their mass from lightest to heaviest.

  1. Which of these animals is lighter? (The pigeon is on the left.)

    Cockatoo

    A

    Pigeon

    B
  2. Which of these animals is lighter? (The sparrow is on the left.)

    Pigeon

    A

    Sparrow

    B
  3. Which list has the animals in order from from lightest to heaviest?

    Cockatoo, Pigeon, Sparrow

    A

    Sparrow, Pigeon, Cockatoo

    B

 

Remember!

To put objects in order by mass, we need to make sure we are using the same unit of measurement, such as grams, for each object we are comparing. 

Outcomes

MA.3.M.1.2

Solve real-world problems involving any of the four operations with whole-number lengths, masses, weights, temperatures or liquid volumes.

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