3-digit − 3-digit subtraction, no borrowing

Difficulty Standard · Set qgujug

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1
373−102
2
347−325
3
467−102
4
162−101
5
825−213
6
384−333
7
652−100
8
397−171
9
769−458
10
501−200
11
927−414
12
975−561
13
636−103
14
859−452
15
542−430
16
538−307
17
881−750
18
318−216
19
965−254
20
587−407

What is in this set

The numbers in this set run from 100 to 999.
Every problem in it will come out column by column with nothing carried.
A careful solution takes 3 written steps on average.
The mistake this set invites most often, in 100% of the problems: the two numbers were added instead of subtracted.
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.

The same skill, harder or easier

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.