Adding and Subtracting Integers Made Easy

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