Word problems: one-step subtraction

Difficulty Standard · Set rk6ze2

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

1
45 seats are set out and 10 of them are taken. How many are still free?
2
104 seats are set out and 25 of them are taken. How many are still free?
3
53 seats are set out and 11 of them are taken. How many are still free?
4
79 seats are set out and 20 of them are taken. How many are still free?
5
117 seats are set out and 8 of them are taken. How many are still free?
6
73 seats are set out and 11 of them are taken. How many are still free?
7
40 seats are set out and 6 of them are taken. How many are still free?
8
41 seats are set out and 17 of them are taken. How many are still free?
9
88 seats are set out and 9 of them are taken. How many are still free?
10
62 seats are set out and 15 of them are taken. How many are still free?
11
80 seats are set out and 4 of them are taken. How many are still free?
12
28 seats are set out and 17 of them are taken. How many are still free?
13
36 seats are set out and 17 of them are taken. How many are still free?
14
16 seats are set out and 16 of them are taken. How many are still free?
15
23 seats are set out and 11 of them are taken. How many are still free?
16
15 seats are set out and 23 of them are taken. How many are still free?
17
18 seats are set out and 21 of them are taken. How many are still free?
18
99 seats are set out and 15 of them are taken. How many are still free?
19
37 seats are set out and 18 of them are taken. How many are still free?
20
72 seats are set out and 21 of them are taken. How many are still free?

What is in this set

The numbers in this set run from 2 to 120.
Every problem in it will take one step.
A careful solution takes 2 written steps on average.
The mistake this set invites most often, in 100% of the problems: the numbers were added; the seats that are taken come out of the total.
Answers are a whole number.

Drawing 240 problems from this page produced 229 different ones, 95% — 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 2 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.