Math Example--Numerical Expressions--Multiplying Integers: Example 9

Topic

Numerical Expressions

Description

Example 9 demonstrates the multiplication of three integers: 9, -3, and -4. The solution shows that when multiplying three integers with two negative numbers and one positive number, the result is positive. In this case, 9 × (-3) × (-4) = 108.

This collection of examples explores various scenarios of integer multiplication, helping students understand the rules governing the multiplication of positive and negative numbers. By presenting different combinations of positive and negative integers, students can recognize patterns and develop a solid foundation for more complex mathematical operations.

Exposure to multiple worked-out examples is crucial for students to fully grasp mathematical concepts. As they encounter various problems solved using consistent principles, students can build a deeper understanding and become more proficient at solving problems independently. The slight variations in examples, such as changing the number and position of negative factors, help students develop flexibility in their problem-solving approaches.

Teacher's Script: In this example, we're multiplying three integers, two of which are negative. Remember our rule: when we have an even number of negative factors, the product is positive. This is why 9 × (-3) × (-4) gives us a positive result. As we practice more, you'll become more comfortable predicting the sign of the product based on the number of negative factors.

For a complete collection of math examples related to Numerical Expressions click on this link: Math Examples: Multiplying Integers Collection.