Identify and use equivalent relationships for whole numbers up to 50
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
Is 10+15 equal to 30-5?
📘 Worked solution
✓10+15=25 and 30-5=25. Yes, equal.
And one from the hard end
Find the missing number: 15+___=50−20.
Solution shown after you try it in practice mode.
Work through all 10, easiest to hardest
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