Represent and solve problems involving the addition and subtraction of whole numbers and decimal numbers, using estimation and algorithms
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
Add 12300+45600 using the standard algorithm.
📘 Worked solution
✓57900.
And one from the hard end
Add 345.678+912.345.
Solution shown after you try it in practice mode.
Work through all 10, easiest to hardest
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