Chpt 5 (Lessons 1-4) Review

Front

What is the Identity Property of Multiplication?

Back

The Identity Property of Multiplication states that any number multiplied by 1 remains unchanged. For example, -3 * 1 = -3.

Front

Evaluate the expression 3x + 4y when x = -2 and y = -3.

Back

-18

Front

What is the value of 2x + 3 + x² for x = 4?

Back

27

Front

If c represents the number of cookies Mary made on Saturday, how do you express the number of cookies she made on Sunday if she baked twice as many?

Back

2c

Front

Solve the expression 5c + 4c + c when c = -3.

Back

-30

Front

What is the Commutative Property of Multiplication?

Back

The Commutative Property of Multiplication states that changing the order of the factors does not change the product. For example, 2 * 3 = 3 * 2.

Front

What is the Associative Property of Multiplication?

Back

The Associative Property of Multiplication states that the way in which factors are grouped does not change the product. For example, (2 * 3) * 4 = 2 * (3 * 4).

Front

What is the Property of Zero in multiplication?

Back

The Property of Zero states that any number multiplied by zero equals zero. For example, 5 * 0 = 0.

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers and variables without an equality sign, while an equation states that two expressions are equal.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with given numbers.