Use square centimetres and square metres to estimate, measure, and compare areas of 2D shapes, including those with curved sides
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
Find the area of a 3cm×7cm rectangle in square centimetres.
📘 Worked solution
✓3×7 = 21cm².
And one from the hard end
A curved lake shape is estimated two ways: coarse grid gives 40m², fine grid gives 47m². If a very precise survey later finds the true area is 46m², which grid estimate was closer?
Solution shown after you try it in practice mode.
Work through all 30, easiest to hardest
Your Winny Score tracks you as the questions ramp up. Stuck on one? A real Winny Math tutor will walk you through it. First lesson free.
Start practicing