10
+7
5
+10
4
+5
10
+9
7
+10
7
+10
10
+6
4
+10
2
+2
2
+2
10
+4
4
+3
2
+1
3
+5
5
+4
10
+6
4
+10
1
+8
10
+2
2
+3
Practice addition 3 addends with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
Frequently Asked Questions
How do I use this Addition 3 Addends Hard Worksheets 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.