Missing Addend Worksheet
A free printable missing addend worksheet with an answer key. Find the missing number that makes each sentence true. Perfect for 1st grade addition 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 addend worksheet with an answer key. Find the missing number that makes each sentence true. It matches first grade goals, roughly ages 6 to 7. Use small objects like buttons or cereal to check tricky problems.
Answer key at a glance
1) 6 + ___ = 10 4; 2) 2 + ___ = 6 4; 3) 4 + ___ = 10 6; 4) ___ + 0 = 9 9; 5) ___ + 2 = 7 5; 6) ___ + 6 = 8 2; 7) 5 + ___ = 7 2; 8) ___ + 6 = 9 3. The key has 24 answers in all.
Tips for using it
- Have your child say each fact out loud while writing the answer.
- Teach the make-10 trick early: 8 + 5 is the same as 8 + 2 + 3 = 13.
- Doubles (6 + 6, 7 + 7) are easy to remember and help with near doubles like 6 + 7.
- For column addition, always start with the ones column on the right.
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.
