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Grade 2 · Math · Unit 9 of 14

Chance & Opposites

Impossible, possible, certain

What your child practises

Describing how likely an event is, and how its opposite compares, and using results so far to predict what is likely next.

Ontario Curriculum expectation: D2.1, D2.2 · likelihood of events and their opposites, and making predictions

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    It is impossible that: “It will snow in July in Ontario.” How likely is the opposite: “It will not snow in July in Ontario.”

    • possible
    • impossible
    • certain
    Show answer

    certain

    Hint: If one thing is certain, its opposite is impossible. If one is impossible, its opposite is certain.

  2. Question 2

    Which colour will the spinner most likely land on?

    • 🔴red
    • 🔵blue
    • 🟢green
    Show answer

    🔴 red

    Hint: The colour with the most space is the most likely.

  3. Question 3

    It will snow in July in Ontario.

    • impossible
    • possible
    • certain
    Show answer

    impossible

    Hint: Impossible means it can never happen.

  4. Question 4

    In 10 picks, 7 were red and 3 were blue. Which colour is the next pick most likely?

    🔴🔴🔴🔴🔴🔴🔴🔵🔵🔵
    • blue
    • red
    Show answer

    red

    Hint: The colour picked more often so far is more likely next time.

  5. Question 5

    It is impossible that: “A cat will fly to the moon.” How likely is the opposite: “A cat will not fly to the moon.”

    • possible
    • certain
    • impossible
    Show answer

    certain

    Hint: If one thing is certain, its opposite is impossible. If one is impossible, its opposite is certain.

  6. Question 6

    Which colour will the spinner most likely land on?

    • 🔴red
    • 🔵blue
    • 🟢green
    Show answer

    🔵 blue

    Hint: The colour with the most space is the most likely.

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