Page 86 - New Medley 1 Semester 2

2 More on Addition and Competencies

C-7.2, C-8.2, C-8.6
Subtraction

Let us Recall 21st CENTURY SKILLS • Critical thinking

• Logical reasoning

Add the following.

1 1 1 1 1 1
+ 1 + 2 + 3 + 4 + 5 + 6

2

1 1 2 2 2 2
+ 7 + 8 + 2 + 3 + 4 + 5

2 2 3 3 3 3

+ 6 + 7 + 3 + 4 + 5 + 6

4 4 1 2 2 3
+ 4 + 5 + 9 + 8 + 9 + 7

3 3 4 4 4 4

+ 8 + 9 + 6 + 7 + 8 + 9

5 5 5 5 5 6
+ 5 + 6 + 7 + 8 + 9 + 7

84