Missing addend with 3-digit numbers

Difficulty Stretch · Set n3wftv

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  1. 1
    6792+=7068

  2. 2
    6136+=6270

  3. 3
    7596+=8251

  4. 4
    1248+=1411

  5. 5
    1900+=2047

  6. 6
    7757+=8267

  7. 7
    5358+=6315

  8. 8
    8695+=9036

  9. 9
    3554+=4105

  10. 10
    3929+=4230

  11. 11
    5512+=6236

  12. 12
    7654+=8523

  13. 13
    1733+=2673

  14. 14
    6472+=6770

  15. 15
    8735+=9591

  16. 16
    5714+=5961

  17. 17
    9595+=9856

  18. 18
    6584+=7522

  19. 19
    5472+=6325

  20. 20
    4493+=5183

What is in this set

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 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.

Next to this

Missing addend with 2-digit numbers

Numbers 107–1,077; every one will need a borrow from the column to the left.

Adding multiples of ten

Numbers 10–1,000; every one will move digits rather than compute.

2-digit + 1-digit addition, no carrying

Numbers 1–998; every one will come out column by column with nothing carried.

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.