705 Quiz 2

Definitions

100

Addition is the same as adding the:

opposite or absolute value?

Opposite

200

Distance is always...

positive or negative?

Positive 

**Because distance is the ABSOLUTE VALUE of a difference between two integers, and absolute value is always positive.

300

Fill in the blank: Distance is the ________ of the difference.

Absolute value

TO FIND DISTANCE: subtract and take the absolute value!

400

Fill in the blank. With money, a ___________ is adding a negative to your account balance and a ___________ is adding a positive to your account balance.

With money, a WITHDRAWAL is adding a negative to your account balance and a DEPOSIT is adding a positive to your account balance.

500

What is the name of two numbers, that are each other's opposites, who equal 0 when added together?

Additive Inverse

Solving

100

What is 3 + 2

5

200

What is -5 + -2

-7

300

What is 5 - 4

5 + (-4)

1

400

-6 + 8

2

500

-7 - (-2)

5

Word Problems

100

Abbey, Ms Morosky's roommate collects bottle caps. If they start with 2 caps and collect 3 more, how many do they have in total? 

5

200

There is a person standing at ground level. There is another person sitting in a tree 10 feet above ground. What is the distance between both people?

10 (feet)

300

Ms. Brown has $10 in her bank account. She deposits $10 into her bank account. How much is in her account now?

$20

400

Ms. Lahens has $15 in her account. She withdraws $5. How much is in her account now?

$10

500

Mr. Galassi started Monday morning with an account balance of -$2 (negative 2 dollars).  On Monday evening, his balance was $10).  Ms. Orsi says that that means Mr. Galassi deposited $8 into his account, because $10 - $2 = $8.

Is Ms. Orsi correct? 

NO! She should have subtracted 10 - (-2)!

Equivalent Expressions

100

What addition expression is equal to 3 - 2?

Remember: Subtraction is the same as adding the opposite!

3 + (-2)

200

What addition expression is equal to -2 - 2?

Remember: Subtraction is the same as adding the opposite!

-2 + (-2)

300

What addition expression is equal to 3 - (-2)?

Remember: Subtraction is the same as adding the opposite!

3 + 2

400

What addition expression is equal to 10 - (-2)?

Remember: Subtraction is the same as adding the opposite!

10 + 2

500

What addition expression is equal to -2 - (-12)?

Remember: Subtraction is the same as adding the opposite!

10

Money

100

Deposit is the same as adding a...

Positive or negative?

Positive

200

Withdrawal is the same as...

Addition or subtraction?

Subtraction

300

Your starting balance on Wednesday is $7.  On Thursday, you deposit $20 of babysitting money.

What is your ending balance?

$27

400

Your starting balance on Tuesday is $49.  On Tuesday afternoon you withdraw $36.  

Which expression represents this scenario?

49 - 36 

49 + (-36)

500

DJ starts the day with -$31 in his account.  At the end of the day, he deposits enough money that his account is back to $0.

How much money did he deposit at the end of the day?

$31