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1
81286−7925
2
89934−6949
3
11249−5550
4
83284−8115
5
78444−3629
6
31488−3002
7
10669−2777
8
96605−8696
9
82084−6050
10
10997−2250
11
42178−2810
12
91426−6174
13
63026−7767
14
25834−4973
15
40222−8891
16
96173−6925
17
30451−4063
18
58226−2277
19
88092−6708
20
76739−8722
Answer key
What is in this set
The numbers in this set run from 1,058 to 99,453.
Every problem in it will need a borrow from the column to the left.
A careful solution takes 6 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 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.