6-digit + 6-digit addition, no carrying

Difficulty Stretch · Set n52wbh

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

1
4425800+101083
2
4105920+873071
3
7210132+247143
4
9474247+221032
5
4881383+106012
6
1513691+335301
7
1835914+123013
8
8195608+102051
9
2340712+120244
10
8747998+100001
11
8436876+133020
12
8851715+106120
13
8604588+203400
14
2386811+210162
15
4359479+420100
16
4890563+101213
17
2808853+150012
18
2672529+306200
19
3731406+101313
20
9015842+184026

What is in this set

The numbers in this set run from 100,010 to 9,893,836.
Every problem in it will come out column by column with nothing carried.
A careful solution takes 7 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 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 5 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.