Converting Celsius to Fahrenheit

Difficulty Starter · Set 7naue1

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1
Convert -20°C to °F. Use F = 9C ÷ 5 + 32.
2
Convert -20°C to °F. Use F = 9C ÷ 5 + 32.
3
Convert 50°C to °F. Use F = 9C ÷ 5 + 32.
4
Convert 40°C to °F. Use F = 9C ÷ 5 + 32.
5
Convert 90°C to °F. Use F = 9C ÷ 5 + 32.
6
Convert 30°C to °F. Use F = 9C ÷ 5 + 32.
7
Convert 20°C to °F. Use F = 9C ÷ 5 + 32.
8
Convert -10°C to °F. Use F = 9C ÷ 5 + 32.
9
Convert 10°C to °F. Use F = 9C ÷ 5 + 32.
10
Convert 50°C to °F. Use F = 9C ÷ 5 + 32.
11
Convert 50°C to °F. Use F = 9C ÷ 5 + 32.
12
Convert 70°C to °F. Use F = 9C ÷ 5 + 32.
13
Convert 100°C to °F. Use F = 9C ÷ 5 + 32.
14
Convert 10°C to °F. Use F = 9C ÷ 5 + 32.
15
Convert 90°C to °F. Use F = 9C ÷ 5 + 32.
16
Convert 40°C to °F. Use F = 9C ÷ 5 + 32.
17
Convert 90°C to °F. Use F = 9C ÷ 5 + 32.
18
Convert 70°C to °F. Use F = 9C ÷ 5 + 32.
19
Convert 90°C to °F. Use F = 9C ÷ 5 + 32.
20
Convert -20°C to °F. Use F = 9C ÷ 5 + 32.

What is in this set

The numbers in this set run from 5 to 100.
84% of them start above freezing.
16% of them start below freezing.
A careful solution takes 3 written steps on average.
Answers are a whole number.

Drawing 240 problems from this page produced 13 different ones, 5% — 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.