This document provides an example of an addition algorithm. It shows the step-by-step work of adding 1 + 1 to get 2, then adding that result to 1 more to get the final sum of 3. The document also shows 9 + 1 = 10 as another example of using an addition algorithm to solve a multi-digit addition problem by adding ones, tens, and ones places separately.

1. Nome: _________________________________________________________________
Data: _____________________________________
ALGORITMO DA ADIÇÃO
D U
1 1
+ 1 2
2 3
D U
9
+ 1 0
D U
+
D U
D U D U
D U D U
D U