Recall addition facts for numbers up to 20, and related subtraction facts
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
What is 4+5?
📘 Worked solution
✓9.
And one from the hard end
What is 14+5?
Solution shown after you try it in practice mode.
Work through all 10, easiest to hardest
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