Adding Integers
-12 + -11 =
-23
A positive added to a positive is ____________.
a) positive
b) negative
c) sometimes positive
d) sometimes negative
a) positive
You have $30 and you mow the grass to earn $30. Write an equation for this.
30 + 30 = 60
8 + -4 =
4
- 15 + 5 =
-10
You have $20 and buy your lunch for $12. Write the equation showing how much money you have.
20 - 12 = 8
60 - (-10) =
70
-200 - 50 =
-250
You get $15 from your friend for your birthday and you buy a hamburger for $6. Write an equation showing how much money you have.
15 - 6 = 9
A negative added to a negative is ____________.
a) positive
b) negative
c) sometimes positive
d) sometimes negative
b) negative
You want to buy some new shoes for $25. What integer would represent this?
-25
You and 3 friends want to go to a movie. The tickets are $12 each. Write the equation to show this situation.
4(-12) = -48
A negative added to a positive is _____________.
a) Always positive
b) Always negative
c) Sometimes negative
d) sometimes positive
Student should give an example of the correct answer.
c and d
Sometimes positive and sometimes negative
You work for 3 hours and your dad pays you $8 for each hour. What integer represents this?
+24
There are 20 students in the class and 4 of them are absent because they are sick. Write the equation showing how many students are in class today.
20 - 4 = 16