Use properties of equality to simplify each of the following expressions so that you can simplify them in your head. Identify the properties used and describe how you used them.

1. 4 • (–3) • 5

-60 i think

what property did you use

calculator

I need to know what property distributive or associative?

4 times - 3 = -12

-12 times 5 = -60

http://www.mathsisfun.com/associative-commutative-distributive.html

To simplify the expression 4 • (–3) • 5, we can use the properties of equality to break it down step by step:

Step 1: Multiply the numbers inside the parentheses first. The product of –3 and 5 is –15.
4 • (–3) • 5 = 4 • (–15)

Step 2: Now, multiply the remaining numbers. The product of 4 and –15 is –60.
4 • (–15) = –60

Therefore, the simplified expression is –60.

Properties Used:
1. The Associative Property of Multiplication: This property allows us to change the grouping of the numbers being multiplied without changing the result. In this case, we can multiply the numbers inside the parentheses first without changing the final answer.

To simplify in your head, simply follow these steps and mentally perform the multiplication.