3-digit + 1-digit addition, no carrying

Difficulty Standard · Set sc044h

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

1
291+4
2
141+6
3
482+4
4
315+1
5
747+1
6
338+1
7
172+6
8
507+1
9
962+7
10
354+2
11
793+2
12
604+5
13
460+3
14
393+4
15
841+2
16
227+1
17
661+6
18
927+1
19
547+1
20
587+1

What is in this set

The numbers in this set run from 1 to 991.
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 subtracted instead of added.
Answers are a whole number.

Drawing 240 problems from this page produced 218 different ones, 91% — 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.