10
+64
20
+57
23
+14
12
+50
59
+30
66
+20
11
+45
30
+30
43
+32
19
+30
60
+14
25
+12
31
+62
51
+40
12
+74
12
+42
10
+10
53
+43
26
+20
61
+28
Download this free addition missing addends to 20 math worksheet. Uniquely generated with an answer key — great for homework, practice, or assessment.
Features
- Printable PDF format
- Answer key included
- Multiple difficulty levels
- Classroom and home friendly
How to Use These Worksheets
- Select a missing addends to 20 set.
- Print or use on-screen.
- Check answers and practice again.
Tips
- Start with easier sets and move up gradually.
- Practice in short sessions (10–15 minutes).
- Review mistakes and redo similar problems.
Frequently Asked Questions
How do I use this Addition Missing Addends To 20 Math Worksheet worksheet?
Print the worksheet and complete the problems. Each set number generates a unique arrangement. Use the same set number for all students in a class for consistent assessment.
Is there an answer key?
Yes — every worksheet includes a complete answer key. Print it separately or view it on screen.