3-digit − 1-digit subtraction with borrowing

Difficulty Standard · Set mq6ok0

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1
231−8
2
410−4
3
521−2
4
202−7
5
402−8
6
531−6
7
470−9
8
930−7
9
606−8
10
112−7
11
416−7
12
333−6
13
111−3
14
960−5
15
812−3
16
642−4
17
123−9
18
673−9
19
150−4
20
928−9

What is in this set

The numbers in this set run from 1 to 996.
Every problem in it will need a borrow from the column to the left.
A careful solution takes 4 written steps on average.
The mistake this set invites most often, in 100% of the problems: each column took the smaller digit from the larger one instead of borrowing from the column to its left.
Answers are a whole number.

Drawing 240 problems from this page produced 232 different ones, 97% — 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.