Family practice
A ratio keeps both quantities in view.
Optional until a teacher marks it
| raisins | peanuts |
|---|---|
| 2 | 5 |
| 4 | ? |
Mateo uses 2 cups of raisins for every 5 cups of peanuts at the school garden. The same relationship has to hold for a larger amount.
Multiplying both parts by the same number does not change how the quantities compare. Adding the same number usually does change the comparison, because the smaller part grows by a larger percent than the larger part.
Problem 1 of 8. What we learned, an example, a few together, then independent practice.
| raisins | peanuts |
|---|---|
| 2 | 5 |
| 4 | ? |
A ratio table shows 2 raisins for every 5 peanuts. How many peanuts go with 4 raisins?
Support frame: Factor = 4 ÷ 2. Second part = 5 × factor.