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Kidorizon · Grades 6–8 · free printable · kidorizon.com

Spot the Mistake: Math, Science & Arguments

Name: ______________________Date: ______________

Each box has four statements written to look like an AI answer. Exactly one is wrong. Circle its letter and write one sentence explaining the flaw.

  1. 1. Solving equations

    A kid asks the AI: “Can you check my equation answers?”

    The AI answers: Sure! Here are four solved equations:

    • Statement A: If 3x = 12, then x = 4.
    • Statement B: If x + 7 = 15, then x = 8.
    • Statement C: If 2x + 1 = 9, then x = 5.
    • Statement D: If x/2 = 6, then x = 12.

    Which statement is wrong? Circle its letter, then tell someone how you decided.

  2. 2. Fractions and percents

    A kid asks the AI: “Tell me about fractions and percents!”

    The AI answers: Here are four facts:

    • Statement A: 25% of 80 is 20.
    • Statement B: 1/4 is the same as 0.25.
    • Statement C: 10% of 50 is 5.
    • Statement D: 3/5 is bigger than 3/4.

    Which statement is wrong? Circle its letter, then tell someone how you decided.

  3. 3. Geometry

    A kid asks the AI: “Give me some geometry facts.”

    The AI answers: Here are four geometry facts:

    • Statement A: The angles in a triangle add up to 180°.
    • Statement B: A square has four equal sides and four right angles.
    • Statement C: A circle's diameter is half its radius.
    • Statement D: The area of a rectangle is length × width.

    Which statement is wrong? Circle its letter, then tell someone how you decided.

  4. 4. Negative numbers

    A kid asks the AI: “How do negative numbers work?”

    The AI answers: Here are four rules:

    • Statement A: −3 is less than −1.
    • Statement B: The absolute value of −7 is 7.
    • Statement C: A negative times a negative is negative.
    • Statement D: Zero is neither positive nor negative.

    Which statement is wrong? Circle its letter, then tell someone how you decided.

  5. 5. Science claims

    A kid asks the AI: “Tell me about physics and matter!”

    The AI answers: Here are four science facts:

    • Statement A: Plants make food using sunlight in photosynthesis.
    • Statement B: In a vacuum, a hammer and a feather fall at the same rate.
    • Statement C: Heavier objects always fall much faster than light ones, even with no air.
    • Statement D: Atoms are the basic building blocks of matter.

    Which statement is wrong? Circle its letter, then tell someone how you decided.

  6. 6. Arguments

    A kid asks the AI: “Help me think about arguments.”

    The AI answers: Here are four statements about reasoning:

    • Statement A: If all cats are mammals and Tom is a cat, then Tom is a mammal.
    • Statement B: An ad hominem argument attacks the person instead of their idea.
    • Statement C: One example always proves a rule is true for everyone.
    • Statement D: Two things happening together does not prove one caused the other.

    Which statement is wrong? Circle its letter, then tell someone how you decided.

Kidorizon practice sheets build thinking skills. They are not a test or assessment. More free activities at kidorizon.com/play