Adding & Subtracting Integer Review

Sum (+) of Integers

100

Find the sum 

(+4)+(+20)

24

200

-12 + 5 =

=-7

300

-16 + (-17) =

-33

400

-5 + -19 =

-24

500

-8+12

4

Number Sentence

100

(+) (+) (+) (+) (+) (+)

(-) (-) (-) (-)

6 - 4 

OR

6 + (-4) 

OR

-4 + 6

200

(+) (+) (+) (+) (+) (+) (+) (+) (+) (+) (+) (+)

(-) (-) (-) (-) (-) (-)

12 - 6

OR

12 + (-6)

OR

-6 + 12

300

(-) (-) (-) (-) (-) (-) (-)

(+) (+) (+) (+) (+)

5 + (-7)

OR

5 - 7

OR

-7 + 5

400

(-) (-) (-) (-) (-) (-) (-) (-) (-)

(+) (+)

2 +(-9)

OR

2 - 9

OR

-9 + 2

500

(+) (+) (+) (+) (+) (+)(+) (+) (+) (+) (+) (+)(+) (+) (+) (+) (+) (+)(+) (+) (+) (+) (+) (+)

(-) (-) (-) (-) (-) (-)

24 - 6 = 

OR

24 + (-6)

OR

(-6) + 24

Find the Difference (-)

100

3 - (-9) =

6

200

-19 - ( 15) =

-34

300

71 - (-14) =

85

400

-14 - (14) =

-28

500

-32 - (-14) =

-17

Vocabulary

100

What are opposites?

^{A negative number and its positive} 

200

What is absolute value?

The number away from zero

300

When you find a sum you are ________.

When you find the difference you are _____________.

Adding

Subtracting

400

Subtracting the opposite is also  ______

ADDING

500

What is an additive inverse?

The same numbers that when added together equal 0 because they are opposites.

It's your choice

100

What is the rule for adding integers with the same sign?

a) The answer is always positive

b) Add the opposite

c) Add across and keep the sign

c

200

-110 + 10 

-100

300

When adding integers with different signs you...

a) Subtract the absolute value and keep the sign of the smaller number

b) Subtract the absolute value and keep the sign of the bigger number

c)Subtract the absolute value then add

b

400

45 is the additive inverse of -145.

True or False

False

500

315 + -20

295

Mixed Practice

100

− 2 + 7

                                               

                                   

    

5

200

The number that is 6 greater than 8

14

300

The number that is 14 less than 3

-11

400

-37.27 + (-13.2)

                                   

    

-50.47

500

4.7+(-3.65)

1.05