Identify when symbols are being used as variables, and describe how they are being used
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 the sentence "___+3=9," what does the blank represent?
📘 Worked solution
✓An unknown number that makes the equation true — here, 6, since 6+3=9.
And one from the hard end
If a star symbol (★) stands for an unknown number in 20−★=13, what does ★ represent?
Solution shown after you try it in practice mode.
Work through all 10, easiest to hardest
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