Proportions bingo

Exercise and reference answers

Clues and terms

1. Clue

   Both quantities rise or fall together.

   Item

   Direct

2. Clue

   One rises exactly as the other falls.

   Item

   Inverse

3. Clue

   What stays fixed in direct proportion.

   Item

   Ratio

4. Clue

   What stays fixed in inverse proportion.

   Item

   Product

5. Clue

   The fixed value in the relation.

   Item

   Constant k

6. Clue

   Classic pair that varies inversely.

   Item

   Speed, time

7. Clue

   Classic pair that varies directly.

   Item

   Cost, weight

8. Clue

   More taps, less time to fill a tank.

   Item

   Taps, time

9. Clue

   Equation used for inverse proportion.

   Item

   x1y1 = x2y2

Instructions

Read each clue and tap the term it describes.

Explanation