sample

Front

What is the result of adding two numbers together?

Back

The result of adding two numbers together is called the sum.

Front

What is the sum of 15 and 5?

Back

The sum of 15 and 5 is 20.

Front

What is the sum of 18 and 2?

Back

The sum of 18 and 2 is 20.

Front

What is the sum of 6 and 1?

Back

The sum of 6 and 1 is 7.

Front

What is the sum of 3 and 10?

Back

The sum of 3 and 10 is 13.

Front

What is the sum of 9 and 1?

Back

The sum of 9 and 1 is 10.

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 of addition states that changing the order of the numbers being added does not change the sum.

Front

What is the associative property of addition?

Back

The associative property of addition states that the way in which numbers are grouped when adding does not change the sum.

Front

How can you check if your addition is correct?

Back

You can check if your addition is correct by using the inverse operation, subtraction, to see if the sum minus one of the addends equals the other addend.