Estimate the number of objects in collections of up to 50, and verify by counting
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
About how many dots are in a small, easily-recognized cluster like ⚫⚫⚫⚫⚫?
📘 Worked solution
✓About 5 — small groups like this can often be recognized at a glance.
And one from the hard end
You see a group that looks like "a bit more than 30" apples. Give a reasonable estimate.
Solution shown after you try it in practice mode.
Work through all 10, easiest to hardest
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