Adding Doubles

Front

What is the result of adding two identical numbers together?

Back

The result is double the value of one of the numbers.

Front

What is 7 + 7?

Back

14

Front

What is 4 + 4?

Back

8

Front

What is 10 + 10?

Back

20

Front

What is 6 + 6?

Back

12

Front

What is 2 + 2?

Back

4

Front

How can you visualize adding doubles?

Back

You can visualize it using objects, such as pairs of items, to represent the two identical numbers.

Front

What is the mathematical term for adding two numbers together?

Back

Addition.

Front

What is the commutative property of addition?

Back

The commutative property states that changing the order of the numbers being added does not change the sum (e.g., a + b = b + a).

Front

What is the associative property of addition?

Back

The associative property states that the way in which numbers are grouped when adding does not change the sum (e.g., (a + b) + c = a + (b + c)).