Addition Facts

Front

What is the sum of 6 and 5?

Back

11

Front

What is the sum of 8 and 4?

Back

12

Front

What is the sum of 7 and 9?

Back

16

Front

What is the sum of 9 and 4?

Back

13

Front

What is the sum of 8 and 7?

Back

15

Front

What is the definition of addition?

Back

Addition is the mathematical operation of combining two or more numbers to get a total.

Front

What is the commutative property of addition?

Back

The commutative property states that changing the order of the addends 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 in addition does not change the sum (e.g., (a + b) + c = a + (b + c)).

Front

What is the identity property of addition?

Back

The identity property states that adding zero to any number does not change the number (e.g., a + 0 = a).

Front

What is a number line and how is it used in addition?

Back

A number line is a visual representation of numbers in a straight line, used to illustrate addition by showing the movement from one number to another.