Adding & Subtracting Integer Review

Sum (+) of Integers

100

Find the sum 

(+4)+(+20)

24

200

-12 + 5 =

=-7

300

-16 + (-17) =

-33

400

-5 + (5) - 19 =

-19

500

-8+(-4)+12

0

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

What is an Integer?

A whole number that can be negative or positive

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 that are both negative?

a) The answer is always positive

b) Add the opposite

c) The answer is always negative

c

200

What are the rules for subtracting a negative?

a) It is the same as adding a positive

b) Subtract the absolute value and keep the bigger number

c) Subtract and keep the sign

a

300

14 + x = -2

To solve this equation you would..

a) 14 + (-2)

b) -2 - 14

c) 14 - 2

b

400

How would I solve the following equation for x:

-3 + x = -15

a) -15 - (-3)

b) 3 + 15

c) 15 - 3

a

500

Solve the following equation for x:

-1/3 - x = -5/6

a) -1/3

b) 1/2

c) -1/6

b

Change the subtraction to addition

100

What is the addition sentence for "15 - 21"

15 + -21

200

What is the addition sentence for "76 - 98"

76 + -98

300

What is the addition sentence for "-94 - 357"

-94 + -357

400

What is the addition sentence for "46 - 38"

46 + -38

500

What is the addition sentence for "-82 - -98"

-82 + 98