Writing a percentage as a decimal

Difficulty Standard · Set yhssk2

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

1
Write 15% as a decimal.
2
Write 35% as a decimal.
3
Write 4% as a decimal.
4
Write 12% as a decimal.
5
Write 15% as a decimal.
6
Write 4% as a decimal.
7
Write 4% as a decimal.
8
Write 15% as a decimal.
9
Write 24% as a decimal.
10
Write 40% as a decimal.
11
Write 4% as a decimal.
12
Write 4% as a decimal.
13
Write 15% as a decimal.
14
Write 8% as a decimal.
15
Write 80% as a decimal.
16
Write 40% as a decimal.
17
Write 35% as a decimal.
18
Write 80% as a decimal.
19
Write 80% as a decimal.
20
Write 15% as a decimal.

What is in this set

The numbers in this set run from 4 to 80.
A careful solution takes 1 written step on average.
The mistake this set invites most often, in 100% of the problems: the point moved one place; per cent means per hundred, so it moves two.
Answers are a decimal.

Drawing 240 problems from this page produced 9 different ones, 4% — 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 6 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.