Represent and solve addition/subtraction problems, sums up to 1000
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
Use counters to model 210+340. What's the total?
📘 Worked solution
✓550.
And one from the hard end
A warehouse has 880 boxes. 250 leave, then 190 more arrive. How many boxes are there now?
Solution shown after you try it in practice mode.
Work through all 30, easiest to hardest
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