Adding and Subtracting Integers Made Easy

This video tutorial covers the basics of adding and subtracting integers. It explains how to handle integers with the same and different signs, using absolute values and the keep change change method for subtraction. The tutorial includes examples and practice problems to reinforce understanding, concluding with a recap of key points.

What is the absolute value of -15?

• -15

• 0

• 15

• 30

When adding two negative integers, what is the result?

• An undefined value

• Zero

• A negative integer

• A positive integer

What happens when you add a positive integer to a negative integer?

• You always get a positive integer

• You always get a negative integer

• You subtract their absolute values and take the sign of the larger absolute value

• You get zero

If you have 20 positive chips and 9 negative chips, what is the result?

• -29

• 29

• 11

• -11

What is the keep-change-change rule used for?

• Adding integers

• Multiplying integers

• Subtracting integers

• Dividing integers

How would you rewrite 13 - 26 using the keep-change-change rule?

• 13 - (-26)

• 13 - 26

• 13 + 26

• 13 + (-26)

What is the result of -16 - 17 using the keep-change-change rule?

• 33

• -33

• 1

• -1

What is the result of 42 + (-65)?

• -107

• 107

• -23

• 23

What is the result of 24 - 37 + (-9)?

• 22

• 46

• -22

• -46

What should you do when you see a subtraction problem?

• Divide the numbers

• Use the keep-change-change rule

• Add the numbers directly

• Multiply the numbers