Determine whether pairs of addition/subtraction expressions are equivalent
30 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest, every one with a full worked solution. Work through all 30 with your weekly-lesson access code.
Sample: the first question, solved
Are 1+2 and 2+1 equivalent?
📘 Worked solution
✓1+2=3 and 2+1=3. Yes, equivalent.
And one from the hard end
The expressions 9+___ and 20−8 are equivalent. Find the missing number, and explain how you found it.
Solution shown after you try it in practice mode.
Work through all 30, easiest to hardest
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