Addition Facts

Front

What is the sum of 8 and 4?

Back

12

Front

What is 5 plus 7?

Back

12

Front

What is 8 plus 3?

Back

11

Front

What is 3 plus 8?

Back

11

Front

If 3 + 9 = _____ + 3, what is the missing number?

Back

9

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 moving to the right for positive sums.