Change between Celsius and Fahrenheit

Answer Key - Grade 7 Math Worksheet

Circle the best answer, or write your answer on the line.

1. 1.

   Bo's bath water feels like 104 °F (a bit too warm for the rubber duck). What is that in °C?

   40 °C
2. 2.

   Esme's fridge thermometer reads 41 °F. What is that in °C?

   5 °C
3. 3.

   Jun solves 77 = 9/5 × C + 32 for C. What is C?

   • 10.8
   • 25
   • 45
4. 4.

   To solve F = 9/5 × C + 32 for C, what does Kira undo first?

   • The + 32
   • Nothing
   • The × 9/5
5. 5.

   Luz rearranges F = 9/5 × C + 32. Which formula gives C?

   • C = 5/9 × (F − 32)
   • C = 9/5 × (F − 32)
   • C = 5/9 × F − 32
6. 6.

   A cold morning on Noah's ski trip is 5 °F. What is that in °C?

   • 15 °C
   • −27 °C
   • −15 °C
7. 7.

   Pia's thermometer shows 20 °F. Is the Celsius reading above or below 0?

   • Exactly 0 °C
   • Above 0 °C
   • Below 0 °C
8. 8.

   Which reading fits a comfortable room in Ren's school?

   • 21 °C
   • 70 °C
   • 2 °C
9. 9.

   Which reading fits a hot summer day at Tala's beach?

   • −30 °C
   • 86 °C
   • 30 °C
10. 10.

    Which reading fits Zee's healthy body temperature?

    • 37 °F
    • 98.6 °C
    • 98.6 °F