Lesson 3-7 Flashcard

Front

What is the expression equivalent to n + n + n + n?

Back

4n

Front

Which property of operations allows us to write 15x + 9 as 9 + 15x?

Back

Commutative Property of Addition

Front

Define the Commutative Property of Addition.

Back

The Commutative Property of Addition states that changing the order of the addends does not change the sum. For example, a + b = b + a.

Front

What is the Distributive Property?

Back

The Distributive Property states that a(b + c) = ab + ac. It allows you to multiply a number by a sum.

Front

What is the Identity Property of Addition?

Back

The Identity Property of Addition states that any number plus zero equals the number itself. For example, a + 0 = a.

Front

If x = 3, what is the value of 4x?

Back

12

Front

What does it mean for two expressions to be equivalent?

Back

Two expressions are equivalent if they have the same value for all values of the variables.

Front

What is the value of 5 + 0?

Back

5 (This demonstrates the Identity Property of Addition.)

Front

If a = 2 and b = 3, what is the value of a + b + b?

Back

8 (This is calculated as 2 + 3 + 3 = 8.)

Front

What is the result of 7n - 3n?

Back

4n (This is an example of combining like terms.)