The 24-hour clock to the 12-hour clock

Difficulty Standard · Set grx29c

Put am or pm after each answer.

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

1
Write 09:40 as a 12-hour time.
2
Write 04:15 as a 12-hour time.
3
Write 15:20 as a 12-hour time.
4
Write 13:10 as a 12-hour time.
5
Write 03:50 as a 12-hour time.
6
Write 14:50 as a 12-hour time.
7
Write 05:20 as a 12-hour time.
8
Write 11:20 as a 12-hour time.
9
Write 14:50 as a 12-hour time.
10
Write 22:10 as a 12-hour time.
11
Write 19:55 as a 12-hour time.
12
Write 13:35 as a 12-hour time.
13
Write 10:40 as a 12-hour time.
14
Write 13:25 as a 12-hour time.
15
Write 04:15 as a 12-hour time.
16
Write 20:55 as a 12-hour time.
17
Write 13:10 as a 12-hour time.
18
Write 16:50 as a 12-hour time.
19
Write 04:45 as a 12-hour time.
20
Write 21:15 as a 12-hour time.

What is in this set

The numbers in this set run from 1 to 55.
56% of them fall before noon.
44% of them fall in the afternoon or the evening.
A careful solution takes 2 written steps on average.
The mistake this set invites most often, in 53% of the problems: anything from 12.
Answers are a short answer exactly as the problem asks for it.

Drawing 240 problems from this page produced 171 different ones, 71% — so a sheet of 20 is a new sheet almost every time.

The same skill, harder or easier

We would put this in front of a grade 5 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.