Question

How does knowing the double 6+6=12 help you solve the near double 6+7=13

Answer 1

6 + 7 = 13

Explanation:

We are given the following information in the question:

We know that

`6 + 6 = 12`

We need this information to evaluate

`6+7`

The evaluation can be done with the help of using associative property and distributive property.

Associative property: (a + b) + c = a + (b + c)

The evaluation can be shown as:

`6 + 7\\= 6 + 6 + 1\\=(6 + 6) + 1\\= 12 + 1\\=13`