Mr. Brust introduces the concept of integers, explaining that they are positive and negative whole numbers. He uses a number line to demonstrate how to add and subtract integers without a calculator. The lesson includes modeling integer operations and introduces the 'keep change change' method for handling double signs. The video concludes with encouragement to practice these concepts.

What are integers?

• Fractions and decimals

• Only negative numbers

• Positive and negative whole numbers

• Only positive numbers

On a number line, what does moving to the right represent?

• Decreasing value

• Increasing value

• Staying the same

• None of the above

If you start at zero and move 7 units to the right and then 5 units to the left on a number line, where do you end up?

• At 5

• At -2

• At 7

• At 2

How would you model the operation of adding -8 and 6 on a number line?

• Move 8 units to the right, then 6 units to the left

• Move 8 units to the left, then 6 units to the right

• Move 6 units to the right, then 8 units to the left

• Move 6 units to the left, then 8 units to the right

If you owe someone $8 and you pay them $6, how much do you still owe?

• $2

• $6

• $0

• $8

If you have -3 and add -5, what is the result?

• -8

• -2

• 2

• 8

If you start at zero, move 5 units to the right, and then 9 units to the left, where do you end up?

• At -9

• At -4

• At 9

• At 4

What does the 'keep change change' method help with?

• Adding positive numbers

• Multiplying integers

• Subtracting positive numbers

• Handling double negative signs

What does a double negative sign in an integer operation indicate?

• A multiplication

• An addition

• A division

• A subtraction

What is the result of subtracting -6 from 4 using the 'keep change change' method?

• 10

• -10

• -2

• 2