Describe how variables are used, and use them in various contexts
10 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest — every one with a full worked solution. Work through them free, no account needed.
Sample: the first question, solved
In an equation like x+5=12, what does "x" represent?
📘 Worked solution
✓An unknown number that, when added to 5, gives 12 (x=7).
And one from the hard end
Which best explains why a scientist might use a variable like "t" for time in a formula, instead of writing a specific number?
Solution shown after you try it in practice mode.
Work through all 10, easiest to hardest
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