Print Kakuro grids from 7x7 to 10x10 with the answers on the last page, and print the combinations table to keep beside them. Clue cells print in grey so the sums stay readable.
What a page looks like
A puzzle as it printsIts answer, on the last page
Printing tips
Pencil the unique combinations in first, in small digits at the top of the cells; erase as the crossings decide.
Which size to print
Sizes count the clue border. A 7x7 grid holds a handful of runs and suits a first sheet, two to a page; 8x8 is the daily Medium and Hard size; a 10x10 has long runs where the combinations table earns its place beside the page, so print it alone.
Using the answer key
Check a finished run by its sum before you open the key: if a run adds up and repeats no digit, the error is usually in a crossing run. The key gives every white cell's digit, with the clue cells in grey.