Converting Fahrenheit to Celsius

Difficulty Standard · Set 15n4dh

Use C = (F − 32) × 5 ÷ 9.

Fill in what you can and press Check. Nothing you type is sent anywhere.

1
Convert 149°F to °C.
2
Convert 194°F to °C.
3
Convert 149°F to °C.
4
Convert 149°F to °C.
5
Convert 95°F to °C.
6
Convert 68°F to °C.
7
Convert 185°F to °C.
8
Convert 32°F to °C.
9
Convert 23°F to °C.
10
Convert 32°F to °C.
11
Convert 212°F to °C.
12
Convert -4°F to °C.
13
Convert 122°F to °C.
14
Convert 158°F to °C.
15
Convert 41°F to °C.
16
Convert 203°F to °C.
17
Convert 122°F to °C.
18
Convert 95°F to °C.
19
Convert 104°F to °C.
20
Convert -4°F to °C.

What is in this set

The numbers in this set run from 4 to 212.
88% of them start above freezing.
12% of them start below freezing.
A careful solution takes 3 written steps on average.
The mistake this set invites most often, in 95% of the problems: only the 32 was taken off.
Answers are a whole number.

Drawing 240 problems from this page produced 25 different ones, 10% — so a sheet of 20 will come back to a problem you have seen — there are only so many sensible ones of this kind.

The same skill, harder or easier

We would put this in front of a grade 7 class. That is our judgement, not a standard, and it is printed here so you can disagree with it. Everything else we put in that year.