Use the ratios of 1 to 2, 1 to 5, and 1 to 10 to scale up numbers and solve problems
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
If a ratio is 1:2 and the first number is 5, what is the second number?
📘 Worked solution
✓10 (5×2).
And one from the hard end
If a ratio is 1:10 and the first number is 7, what is the second number?
Solution shown after you try it in practice mode.
Work through all 10, 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