Add and Subtract Integers

Rules

100

Which way do you move when you add a positive number? 

Right

200

Which way do you move when you add a negative number? 

Left

300

What is the rule when subtracting integers?

Keep, Change, Change

400

When adding integers with the same signs, there are two things you must do as a rule. What are they?

Add the integers and keep the sign.

500

If you subtract a negative number FROM a negative number, is the answer always positive? 

No, it depends on how large the negative number is. 

Adding Integers

100

Add the integers 

6+(-4)

 2

200

Add the integers

-3+2

-1

300

Add the integers

-5+ (-6)

-11

400

Add the integers

-20 + 3

-17

500

Add the integers

-12 + (-4) + (-3)

-19

Subtracting Integers

100

Subtract the integers

7 - 10

What is -3?

200

Subtract the integers

-5 - 7

What is -12?

300

Subtract the integers

6- (-4)

What is 10?

400

Subtract the integers

-9 - 4 - 4

What is -17?

500

Subtract the integers

(-6) - 2 + 6

What is -2

True or False

100

-6+-6 = 12

False  -12

200

-8-(-6)= -14

False   -2

300

9+-7= 2

True

400

-9-(-3)+(-4)= -10

True

500

11-17-(-14)+3+8=18

False 19 

2 step challenge

100

Add and Subtract integers

-3 + 6 - 3

0

200

Add and Subtract integers

-3 + 6 + -3 + 10

10

300

Add and Subtract the Integers

-4-(-7)+8-2

9

400

Add and Subtract the Integers

-12+(-22)-15

-49

500

Add and Subtract the Integers

-33-45+17-4+11-2

-56