Integer Operations

Addition

100

Finish that lyric..

Same signs....

ADD AND KEEP

200

Finish that Lyric....

Different signs...

SUBTRACT
KEEP THE SIGN OF THE LARGER NUMBER

300

-5 + -3

-8

400

-10 + 3

-7

500

-15 + 9

-6

600

14 + -15

-1

700

27 + -32

-5

Subtraction

100

In order to subtract integers, we change into into an ________________ problem.

addition

200

LCC

Leave it, change it, change it

300

What is the following as an addition problem?

5 - 3

5 + -3

400

5 - 7

-2

500

10 - -6

16

600

14 - 20

-6

700

22 - 25

-3

Multiplication

100

When signs are the same when multiplying, your product will be...

POSITIVE

200

When signs are different when multiplying, your product will be...

NEGATIVE

300

5 ( -4)

-20

400

-5 ( -4)

20

500

11(-3)

-33

600

-7 ( 9)

-63

700

What's the error?

-5 (-4) = -9

Students subtracted instead of multiplying!!

Division

100

When signs are the same when dividing, your product will be...

POSITIVE

200

When signs are different when dividing, your product will be...

NEGATIVE

300

144/-12

-12

400

-36 / -6

6

500

-72 / 8 

-9

600

What's the error?

66 / 6 = -11

Signs are the same so the answer should be positive

700

What's the error?

-300 / -10 = 3000

They multiplied instead of dividing

Word Problems

100

If a problem is asking you for a PRODUCT, what operation are you expected to do?

multiplication

200

If a problem is asking you for a sum, what operation are you expected to do?

Addition

300

Mrs. Bilello's recipe for zucchini bread calls for 4 eggs. She wants to make 6 batches so that she has enough for everyone. How many eggs will she need?

Make sure to write out your work!

6 ( 4) =24

400

A climber climbed down a cliff 50 feet at a time. He did this 5 times in one day. What was the total change in elevation?

Show work and label!

-250 feet

500

A woman is making payments for car repairs over 6 months. The total that she has to pay is $1500. What is her monthly change in her bank account?

Show work and label.

-$250

600

Mr. Morris needs 175 textbooks. He currently has 85 textbooks. If they come in boxes of 15, how many boxes should he buy?

6

700

Mrs. Trucios needs 175 notebooks. She currently has 90. If they come in boxes of 9, how many boxes does she need to buy?

Show work!

10 boxes

BONUS: Explain why this one is trickier.

Ms. DeSousa

100

Ms. DeSousa has this many cats at home.

2!

200

What is the name of Ms. DeSousa's black cat?

Shelly

300

What sport did Ms. DeSousa participate in through college?

Swimming

400

What is Ms. DeSousa's favorite food/drink?

Diet Coke

500

What is Ms. DeSousa's favorite book genre?

Fantasy or science fiction

600

What is Ms. DeSousa's black cat's full name? (she is named after a TV character)

Sheldon

700

Which of the following does Ms. DeSousa currently collect?

a. labubus

b. designer bags

c. disney pins

d. nail polishes

e. sneakers

c. disney pins

BONUS: What movies specifically does Ms. DeSousa look for when collecting?