Find the digit in the box
Vertical addition run backwards: the answer is given, a digit is missing, and the ones column with its carry says which one it is.
One column at a time, from the ones.
A missing digits worksheet generator, printable as a PDF. Vertical addition and subtraction problems with a box in place of one digit in each column, in the top number or the bottom one, and the answer row given. 2-digit problems without regrouping, with regrouping, or 3-digit; addition, subtraction or both. There is at most one box in each column, so every box has exactly one digit that fits, and no box hides a leading zero. Twenty-five problems a page at 2 digits, sixteen at 3, with an answer key.
1 token a sheet, fewer in batches.
US Letter PDF — prints on any home printer.
Ones
What digit makes the ones column come out right?
Carry
Did the ones make ten? Carry one to the tens.
Tens
Do the same in the tens, carry included.
Operation
Numbers
One box in each column at most, and the answer always given: every box has exactly one digit that fits.
Your worksheet lands here — download, print, or email it.