Understanding Integers

This video tutorial covers the basic rules of integers, including definitions and examples of integers, rules for adding, subtracting, multiplying, and dividing integers. It explains how integers can be positive, negative, or zero, and provides examples for each operation. The tutorial uses the KFC method for subtraction and highlights the importance of sign rules in operations. The video concludes with a summary of the key points discussed.

Which of the following is an integer?

• -3

• 0.75

• 1.5

• 2.3

What is the result of adding two positive integers?

• Negative

• Zero

• Positive

• Undefined

How do you determine the sign of the result when adding a negative and a positive integer?

• Always positive

• Always negative

• Sign of the larger absolute value

• Zero

What is the first step in the KFC method for subtracting integers?

• Add the numbers

• Keep the first number

• Change the second number

• Flip the sign

When subtracting integers, what do you do after flipping the subtraction sign?

• Subtract the numbers

• Keep the first number

• Change the second number to its opposite

• Add the numbers

What is the result when multiplying two integers with the same sign?

• Undefined

• Zero

• Positive

• Negative

What is the result when dividing two integers with different signs?

• Positive

• Negative

• Undefined

• Zero

Calculate: 3 times -3.

• 3

• 0

• -9

• 9

What is the result of dividing -12 by 6?

• 12

• 0

• -2

• 2

If you multiply -4 by -5, what is the result?

• -20

• 20

• 0

• -9