Feet and inches to inches

Difficulty Standard · Set kyi96w

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

1
How many inches are there in 10 feet 9 inches?
2
How many inches are there in 10 feet 1 inch?
3
How many inches are there in 6 feet 1 inch?
4
How many inches are there in 8 feet 10 inches?
5
How many inches are there in 4 feet 2 inches?
6
How many inches are there in 6 feet 2 inches?
7
How many inches are there in 6 feet 7 inches?
8
How many inches are there in 12 feet 11 inches?
9
How many inches are there in 11 feet 11 inches?
10
How many inches are there in 2 feet 1 inch?
11
How many inches are there in 6 feet 3 inches?
12
How many inches are there in 9 feet 8 inches?
13
How many inches are there in 5 feet 5 inches?
14
How many inches are there in 2 feet 6 inches?
15
How many inches are there in 11 feet 2 inches?
16
How many inches are there in 2 feet 9 inches?
17
How many inches are there in 9 feet 7 inches?
18
How many inches are there in 9 feet 5 inches?
19
How many inches are there in 10 feet 10 inches?
20
How many inches are there in 7 feet 9 inches?

What is in this set

The numbers in this set run from 1 to 12.
Every problem in it will arrive written in two units at once.
A careful solution takes 2 written steps on average.
The mistake this set invites most often, in 100% of the problems: the two numbers were written side by side.
Answers are a whole number.

Drawing 240 problems from this page produced 101 different ones, 42% — 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 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.