Use the ratios of 1 to 2, 1 to 5, and 1 to 10 to scale up numbers and solve problems
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
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
Using the ratio 1:5, scale up the set 2, 3, 4, then explain how you'd verify the scaled values maintain the same ratio.
Solution shown after you try it in practice mode.
Work through all 30, easiest to hardest
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