Represent and solve problems involving the addition and subtraction of whole numbers and decimal numbers, using estimation and algorithms
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
Add 12300+45600 using the standard algorithm.
📘 Worked solution
✓57900.
And one from the hard end
A warehouse has 789450 items. 234670 leave, then 156890 more arrive, then 45000 leave again. How many items are there now?
Solution shown after you try it in practice mode.
Work through all 30, easiest to hardest
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