This extension comes in 2 parts. First, I will teach you how to convert temperatures and mileage. Then you may take a quiz to earn up to 50 extra credit points!
When you are ready to take the quiz - press the "Quiz" button above and the quiz will be offered.

Celsius and Fahrenheit cause confusion because they are so different. 25^o Celsius is lovely, while 25^o Fahrenheit is dreadful. 100^o Fahrenheit is hot, while 100^o Celsius would kill you instantly.

The comparison is 5 Celsius : 9 Fahrenheit plus or minus 32.
To convert from Celsius to Fahrenheit, you multiply by ⁹/₅ and add 32.
To convert from Fahrenheit to Celsius you subtract 32 then multiply by ⁵/₉.

The comparison is 5 Celsius : 9 Fahrenheit plus or minus 32.
To convert from Celsius to Fahrenheit, you multiply by ⁹/₅ and add 32.
To convert from Fahrenheit to Celsius you subtract 32 then multiply by _____.

The comparison is 5 Celsius : 9 Fahrenheit plus or minus 32.
To convert from Celsius to Fahrenheit, you multiply by ⁹/₅ and ______ 32.
To convert from Fahrenheit to Celsius you subtract 32 then multiply by ⁵/₉.

Convert 15^o C to ___ F

To convert from Celsius to Fahrenheit, you multiply by ⁹/₅ and ______ 32.

Convert 5^o C to ___ F
To convert from Celsius to Fahrenheit, you multiply by ⁹/₅ and ______ 32.

Convert 90^o F to ___ C
To convert from Fahrenheit to Celsius you subtract 32 then multiply by ⁵/₉. (round to the nearest degree)

Convert 34^o F to ___ C
To convert from Fahrenheit to Celsius you subtract 32 then multiply by ⁵/₉. (round to the nearest degree)

Changing kilometers to miles and vice versa is much easier. 5 miles is about 8 km. So multiply miles * ⁸/₅ to get kilometers or multiply kilometers by ⁵/₈ to get miles.

55 miles per hour is about ____ kilometers per hour.
multiply miles * ⁸/₅ to get kilometers

25 miles per hour is about ____ kilometers per hour.
multiply miles * ⁸/₅ to get kilometers

35 miles per hour is about ____ kilometers per hour.
multiply miles * ⁸/₅ to get kilometers

80 kilometers is about ____ miles.
multiply kilometers * ⁵/₈ to get miles.

60 kilometers is about ____ miles.
multiply kilometers * ⁵/₈ to get miles.

200 kilometers is about ____ miles.
multiply kilometers * ⁵/₈ to get miles.