Missing Number Subtraction
A free printable missing number subtraction worksheet with an answer key. Find the missing number in each subtraction sentence. Perfect for 1st grade subtraction practice at home or in class.
- Size
- US Letter (8.5 × 11 in), fits A4
- 2 pages: the worksheet and its answer key
- Level
- Grade 1
- License
- Free for personal & classroom use
About this worksheet
A free printable missing number subtraction worksheet with an answer key. Find the missing number in each subtraction sentence. First graders can do it on their own once they know the strategy at the top of the page. Check each answer by adding it back to the number taken away.
Answer key at a glance
1) 5 - ___ = 2 3; 2) ___ - 1 = 4 5; 3) 4 - ___ = 2 2; 4) 9 - ___ = 1 8; 5) 4 - ___ = 1 3; 6) ___ - 2 = 8 10; 7) 5 - ___ = 0 5; 8) ___ - 8 = 2 10. The key has 24 answers in all.
Tips for using it
- Count back on your fingers or the number line for the hardest facts.
- Think addition: 12 - 7 asks what you add to 7 to make 12.
- For small numbers, counting back on a number line is a reliable strategy.
- When borrowing, cross out the digit you borrow from and write the new number above it.
Printing tips
Download the PDF and print at 100% (or “fit to page” on A4). Page 1 is the worksheet and page 2 is the answer key with the answers in red; print just page 1 if you want to keep the answers for checking. The PNG shows page 1 only. Free for personal, family and classroom use.
