Turning hours and minutes into minutes

Difficulty Standard · Set nd6doh

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

1
How many minutes are there in 8 hours and 5 minutes?
2
How many minutes are there in 9 hours and 32 minutes?
3
How many minutes are there in 3 hours and 26 minutes?
4
How many minutes are there in 5 hours and 16 minutes?
5
How many minutes are there in 3 hours and 19 minutes?
6
How many minutes are there in 7 hours and 22 minutes?
7
How many minutes are there in 7 hours and 10 minutes?
8
How many minutes are there in 6 hours and 23 minutes?
9
How many minutes are there in 6 hours and 38 minutes?
10
How many minutes are there in 8 hours and 29 minutes?
11
How many minutes are there in 3 hours and 27 minutes?
12
How many minutes are there in 3 hours and 24 minutes?
13
How many minutes are there in 7 hours and 12 minutes?
14
How many minutes are there in 2 hours and 42 minutes?
15
How many minutes are there in 9 hours and 5 minutes?
16
How many minutes are there in 6 hours and 54 minutes?
17
How many minutes are there in 5 hours and 31 minutes?
18
How many minutes are there in 5 hours and 38 minutes?
19
How many minutes are there in 5 hours and 49 minutes?
20
How many minutes are there in 7 hours and 36 minutes?

What is in this set

The numbers in this set run from 2 to 55.
A careful solution takes 2 written steps on average.
The mistake this set invites most often, in 100% of the problems: an hour is 60 minutes, not 100 — the two parts cannot be written side by side.
Answers are a whole number.

Drawing 240 problems from this page produced 179 different ones, 75% — 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 4 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.