The document shows the step-by-step work of adding 6 + 5. It first writes 6 + 5 =, then shows carrying the 1 when adding 4 and 1, resulting in 10 + 1 = 11, and concludes that 6 + 5 = 11.

2. 6+5=
4 1
6+ 4+1=10+ 1 = 11

3. 6+5= 11

4. 6
1 0
+5
+4 +1
1 1