Question

find the product of (100)·(-0.09).
(lesson 5-9)

Explanation:

Step1: Recall multiplication rule

When multiplying a positive number by a negative number, the product is negative. Also, multiplying by 100 moves the decimal point two places to the right.

Step2: Perform the multiplication

We have \(100\times(-0.09)\). First, calculate \(100\times0.09 = 9\), then apply the sign rule. So \(100\times(-0.09)=-9\).

Answer:

\(-9\)