10
+6
7
+1
6
+2
8
+1
6
+1
6
+2
1
+6
5
+3
3
+3
3
+2
4
+4
10
+3
1
+3
10
+1
10
+4
10
+3
4
+2
6
+2
9
+10
4
+2
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.