Addition and Subtraction

Front

What is the result of adding two numbers called?

Back

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

Front

What is the result of subtracting one number from another called?

Back

The result of subtracting one number from another is called the 'difference.'

Front

What is 180 + 620?

Back

800

Front

What is 926 - 658?

Back

268

Front

What is 753 - 378?

Back

375

Front

What is 461 + 528?

Back

989

Front

If you add 0 to a number, what is the result?

Back

The result is the same number (Identity Property of Addition).

Front

If you subtract 0 from a number, what is the result?

Back

The result is the same number (Identity Property of Subtraction).

Front

What is the commutative property of addition?

Back

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