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1
9211−738
2
3030−993
3
4450−664
4
3802−286
5
3639−806
6
7023−963
7
4515−629
8
2718−428
9
6743−271
10
3451−394
11
2280−415
12
1061−517
13
7937−471
14
8202−338
15
6266−765
16
6232−788
17
2829−671
18
6508−554
19
5390−934
20
1180−990
Answer key
What is in this set
The numbers in this set run from 101 to 9,952.
Every problem in it will need a borrow from the column to the left.
A careful solution takes 5 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 240 different ones, 100% — so a sheet of 20 is a new sheet almost every time.
We would put this in front of a grade 3 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.