Adding multiples of ten

Difficulty Stretch · Set eqveaj

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1
141×100=
2
451×100=
3
782×10=
4
637×10=
5
297×10=
6
396×10=
7
459×1000=
8
815×10=
9
325×100=
10
645×1000=
11
340×10=
12
677×100=
13
812×100=
14
678×10=
15
762×10=
16
964×100=
17
710×1000=
18
670×100=
19
178×100=
20
808×10=

What is in this set

The numbers in this set run from 10 to 1,000.
Every problem in it will move digits rather than compute.
A careful solution takes 1 written step on average.
The mistake this set invites most often, in 69% of the problems: one zero short.
Answers are a whole number.

Drawing 240 problems from this page produced 231 different ones, 96% — 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.

Next to this

Missing addend with 3-digit numbers

Numbers 1,137–10,869; every one will need a borrow from the column to the left.

2-digit + 1-digit addition with carrying

Numbers 1–89; every one will need a carry into the next column.

All of addition

29 skills in this topic, 82 sets between them.

Printing it

The printed sheet carries no menus and no advertising, and the answer key is on its own page.