Adding and Subtracting Integers

The video covers module two, lesson four, focusing on adding rational numbers. It includes instructions for classwork and homework, details on book pickup, and examples of adding numbers with the same and opposite signs. The teacher emphasizes understanding absolute values and common signs, and provides a summary of the lesson's key points.

What are the available times for book collection?

• Monday and Tuesday from 8 a.m. to 3 p.m.

• Wednesday and Thursday from 9 a.m. to 4 p.m.

• Monday and Tuesday from 9 a.m. to 5 p.m.

• Wednesday and Thursday from 8 a.m. to 3 p.m.

How do you add rational numbers with the same sign?

• By subtracting their absolute values and using the common sign

• By dividing their absolute values and using the common sign

• By multiplying their absolute values and using the common sign

• By adding their absolute values and using the common sign

What is the result of adding two negative numbers?

• It depends on the numbers

• A positive number

• A negative number

• Zero

What is the sum of -4 and -16?

• -12

• 20

• 12

• -20

When adding integers with opposite signs, what is the first step?

• Add the absolute values

• Divide the absolute values

• Multiply the absolute values

• Subtract the absolute values

How do you represent the sum of 5 and -3 on a number line?

• Move 3 units right, then 5 units left

• Move 5 units left, then 3 units right

• Move 3 units left, then 5 units right

• Move 5 units right, then 3 units left

Which integer has the greater absolute value: -9 or 5?

• It depends on the context

• 5

• -9

• Both have the same absolute value

What is the result of adding -6 and 3?

• 9

• -9

• -3

• 3

What is the sum of 105 and -126?

• -231

• 21

• -21

• 231

What should you do if you have questions about the lesson?

• Wait until the next class

• Write them down and ask in the next class

• Ignore them

• Email the teacher immediately