Operations with Negative Numbers

This video tutorial from Howard Community College covers subtracting positive and negative numbers using two methods: a mathematical approach and a number line approach. The instructor demonstrates how to convert subtraction problems into addition problems by using the opposite sign and explains the process with examples. The video also illustrates how to visualize these problems on a number line, emphasizing the concept of moving in the opposite direction when subtracting. The tutorial concludes with several example problems to reinforce the concepts taught.

What is the main topic discussed in the video?

• Adding fractions

• Subtracting positive and negative numbers

• Multiplying numbers

• Dividing numbers

How does the instructor suggest handling subtraction problems?

• By using a calculator

• By ignoring the negative signs

• By converting them into multiplication problems

• By converting them into addition problems

In the example of 5 minus 8, what is the first step in converting it to an addition problem?

• Add 8 to both sides

• Multiply by 2

• Change the minus sign to a plus sign

• Change 5 to -5

What is the result of 5 plus negative 8?

• 3

• -13

• -3

• 13

What is the opposite of subtraction?

• Division

• Multiplication

• Addition

• Subtraction

What is the absolute value of -8?

• 0

• 8

• -8

• 16

What is the result of 5 minus 8?

• 13

• -3

• -13

• 3

What is the opposite of a positive number?

• Infinity

• Positive number

• Negative number

• Zero

What is the opposite of a negative number?

• Positive number

• Infinity

• Zero

• Negative number

When using a number line, in which direction do you move for a positive number?

• Left

• Down

• Right

• Up