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# Sum of the first n numbers - PowerPoint PPT Presentation

SUMA DE DOS DIGITOS. En esta lección aprenderás a sumar números de dos dígitos. Fíjate en la siguiente suma:. 2 7 + 3 5 -------. 1 2 7 + 3 5 -------. 2. 1 2 7 + 3 5 -------. 6 2. Muy bién , ahora inténtalo con esta otra suma:.

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## PowerPoint Slideshow about 'Sum of the first n numbers' - belle

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### En esta lección aprenderás a sumarnúmerosde dos dígitos...

Fíjate en la siguiente suma:

2

62

3

8 3

0

90

4

4 4

4 4 5

4 4 8 5

2

92

92 5

### 3.1 1 3 3 4.4 9+ 5 9 + 1 6----- ------

92 6 5

5. 3 7 6. 7 8 + 2 3 + 1 8 ------- ------- 7. 2 5 8. 3 8 + 3 6 + 5 4 ------- ------

### 15.3 7 6. 7 8 + 2 3 + 1 8 ------- -------60

1 15.3 7 6. 7 8 + 2 3 + 1 8 ------- -------60 6

1 15.3 7 6. 7 8 + 2 3 + 1 8 ------- -------60 9 6