Vocab/Rules
Adding Integers
Subtracting Integers
Word Problems
Mixed Review
100

When subtracting, use the ____, _____, _____ rule.

keep, change, change

100
-5 + 9
4
100
-4 - 6
-4 + (-6) = -10
100
Jason dives 10 feet under water and swims back up 3 feet. Where is his current location in the water?
-10 + 3= -7
100

When adding a positive number, move _____ on the number line.

right

200

When adding numbers with the same sign, _____ the numbers and _____ the sign.

add, keep

200
-12 + 5
-7
200
4 - 11
4 + (-11) = -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
200

When adding a negative number, move _____ on the number line.

left

300

When adding numbers with different signs, _____ the numbers and keep the sign of the _____ number.

subtract, larger

300
-16 + (-17)
-33
300
15 - (-7)
15 + 7 = 22
300
The temperature is now 76 degrees, it rose 12 degrees overnight. What temperature was it last night?
76-12 = 64 degrees
300

-16 + 4

-12

400

The set of whole numbers and their opposites are called _____.

integers

400

-10 + (-2) + 15

3

400
-27 - (-3)
-27 + 3 = -24
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
400

-11 - (-19)

8

500

Subtracting a positive number is the same thing as...

Adding a negative 

Example:  7-4 = 7 +-4

500

-16 + 18 + (-17)

-15

500

-10 - 11 - (-3)

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

500

Nikkia starts with $100 in her bank account, she withdraws $25 to pay her phone bill. She lets a friend borrow $30 and buys lunch for $12. She finds $20 cash on the street and deposits 1/2 of it. How much money is in her bank account?

100 - 25 - 30 - 12 + 10 = $43

500

Hadley had 14 apples in her basket.  Her brother put his 28 apples in her basket.  They gave half of the apples to their friends.  Then she gave 5 apples to her cousin.  How many apples does Hadley now have?

14 + 28 - 21 - 5 = 16 apples

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