Adding and Subtracting Integers Review

Algebra Tiles

100

Represent -5 three different ways

Answers vary

200

What is a zero pair?

One negative and one positive tile

300

Use tiles to find:

(-5) + 6

1

400

Use tiles to find

9 - (-4)

13

500

Use tiles to find

(-3) + 5 - (-1)

3

Adding Integers

100

-5 + 9

4

200

-12 + 5

-7

300

-16 + (-17)

-33

400

How do you find the sum of numbers with different signs

Subtract and take the sign of the # with the greater absolute value

500

-16+18+-17

-15

Subtracting Integers

100

-4 - 6

-4 + (-6) = -10

200

4 - 11

4 + (-11) = -7

300

15 - (-7)

15 + 7 = 22

400

-27 - (-3)

-27 + 3 = -24

500

-10 - 11 - (-3)

-10 + (-11) + (3)= -18

Word Problems

100

Jason dives 10 feet under water and swims back up 3 feet. Where is his current location in the water?

-10 + 3= -7

200

Chris gets paid $100, and then must pay his cable bill which is $245. How much money does he have?

100 - 245 = $-145

300

The temperature is now 76 degrees, it rose 12 degrees overnight. What temperature was it last night?

76-12 = 64 degrees

400

In a game, Jareek earned 15 points in the first round, in the 2nd round he lost 20 points for not showing sportmanship. In the final round he scored double what he did in the first round. What is his final score?

15 + (-20) + 30 = 25 points

500

Nikkia starts with $1000 in her bank account, she withdraws $750 to pay her rent. She lets a friend borrow $70, buys new clothes for $120. She finds $100 cash on the street, and deposits 1/4 of it. How much money is in her bank account?

$85

Mixed Review

100

What is 0.7 as a percent?

70 %

200

Is 523 divisible by 4? How do you know?

No, because 23 is not divisible by 4.

300

1/5 + 4 1/2

4 7/10

400

Which is greater? How do you know?

0.4 or 2/11

0.4 > 2/11

0.4 is just less than half and 2/11 is just more than zero.

500

What are Ms. Klein's kids names?

Cambel and Callan