Equation reasoning · mixed blank positions
Missing Number Worksheet Generator
Turn ordinary arithmetic into “what belongs in the box?” practice. Hide the first operand, second operand, or answer—or mix all three positions—while keeping the same controls for number size, regrouping, division remainders, answer keys, and fresh versions.
Mixed Math Practice — Missing Numbers
Beyond answer blanks
Hiding an operand asks students to reason backward through the equation instead of only calculating left to right.
Mix blank positions
Mixed position prevents the page from becoming a repeated visual routine where students know the unknown is always in the same place.
Keep the key complete
The answer key restores the full equation, so a hidden operand and a hidden result are both easy to check.
Frequently asked questions
Which number can be missing?
You can hide the first number, the second number, the answer, or choose Mix so blank positions vary across the worksheet.
Which operations are supported?
Addition, subtraction, multiplication, division, and mixed-operation practice are all available.
Can I reveal the missing values before printing?
Yes. Show answers in preview reveals every hidden value on screen without changing the student worksheet.
Does the PDF include an answer key?
It can. Leave Include answer key on to add a separate completed key page to the downloaded PDF.