Let's break down the expression:

\[
12 \times (-5) \times 5
\]

1. First, multiply \(12\) by \(-5\):

\[
12 \times (-5) = -60
\]

2. Now, multiply \(-60\) by \(5\):

\[
-60 \times 5 = -300
\]

So, the result of the expression is \(-300\).

Would you like more details or have any questions?

Here are 5 related questions for further practice:
1. What is \( 15 \times (-4) \)?
2. Simplify the expression \( (-3) \times (-7) \times 2 \).
3. Solve \( 6 \times (-8) \times 4 \).
4. What is \( (-9) \times (-3) \times 5 \)?
5. Simplify \( (-2) \times (-5) \times (-3) \).

**Tip**: Remember, multiplying two negative numbers gives a positive result, while multiplying a positive and negative number gives a negative result!

Learn how to multiply a positive number by a negative number using the example 12 (-5) * 5. This step-by-step solution demonstrates key multiplication concepts and negative number rules, suitable for students in Grades 6-8.

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